op

():(, ((a) _wXaXUutARJIB = a; )); ((r,...) f; h; t; d; a; s; e=; n=; l={}; n<  n=n+; n<  e%<  n=n+ e=(e+)%  o=n+e (e%)<=  e=(e+)%  n<  e%<  n=n+ e=(e+)%  t=n+e (e%)<  e=(e*)%  e=   l[e] l[e]= a={};  e%~=  e=(e-)%  e=   l[e] l[e]= f=;  e=(e*)% n=n+  e=   l[e] l[e]= d=getfenv  ();    e%~=  e=(e*)%  n<  e%<  n=n+ e=(e+)%  t=n+e (e%)>=  e=(e-)%  e=   l[e] l[e]= h=;  e%~=  e=(e+)%  e=   l[e] l[e]= s=;  e=(e*)% n=n+  e=   l[e] l[e]= d=( d) _ENV  d;    e=(e+)% n=n+  n<  e%<  n=n+ e=(e-)%  h=n+e (e%)<  e=(e-)%  e=   l[e] l[e]= t=(t) e=   (n)e=e+n  t:(e-n,e-)     n=()(n==)    e=f.(()) e=(e) n== e=a.(e) n== e=e~= n== d[e]=(n,e) (,,r,e,n)  n== e=d[e] n== e=d[e][(f.(()))];  n=()a[n]=e     e%~=  e=(e*)%  e=   l[e] l[e]=   e=(e-)% n=n+  e=   l[e] l[e]=      e=(e*)%  (h); n={}; e=,   l=a.(e);n[e]=l;n[l]=e;   (e) n[e];  _=((r,f) h,l=,  n={{},{},{}} d=-  e=  t=r    n[][a.(f,e,(()e=h+e  e- )())]=(()d=d+  d )() d==() d=l=     d=#f  e<d+  n[][l]=a.(f,e,(()e=h+e  e- )())l=l+  l%==  l= a.(n[],(((((n[][n[][]] )*)+(n[][n[][]] )+t)%)));t=r+t;   a.(n[]));((,));((,)); e=(-+(() f,e=,;((d,n,l,e)((e  e,e,n,d) (n  n,e  l,l,d),(n,n,l,e),(n,e,d,n),(e,d,l,e  n)))((l,d,t,n) f>   n  f=f+ e=(e+)% (e%)<  e=(e*)%  ((l,n,d,d),(t  l,n,l,l),(t,d,d  n,n),(t,d,n,t) (n,l,t,t))  n   t ,(t,n,d,l) f>   t  f=f+ e=(e-)% (e%)>=  e=(e-)%  n   ((l,d,n,d) (l,n,l,t),(t  l,l,t,l),(t,d,l,d),(t,d,d,d  n))  ((l,t,d,n),(l,d,n,d),(t,l,d,n),(n,d,n,d) (t,l  n,n  n,n)),(t,d,l,n) f>   l  f=f+ e=(e*)% (e%)<  e=(e+)%  ((d,n,t,l) (t,n,t,d),(t,d,n,d),(n,t,d,n),(l,l  d,l,d))  t   t ,(n,l,t,d) f>   t  f=f+ e=(e+)% (e%)>   l   ((d  n,n,t,l),(d,n,d,d  d) (n  l,t,l,t),(l,t,l,n  n),(n,d,t,t))  ((n,t  t,n  l,l),(d,l,n  d,t),(n  d,d  l,l,l),(d,l,n,n  n) (d,l,t,n))) e;)()) ee=(getfenv)(() _ENV ); o=a.EdkdLLWG  a.JZzBQhpz; h=; t=; d=; ne=;  (c,...) u=(e,); n=;a.(()a.()n=n+ )  (l,e) e   n ;n=l+n;  l,n,_=(,r,e,u,a.cSuppDuW);  () l,n=a.(u,(,),(,)+);();(n*)+l;; k=; k=   () e=(); n=(); t=; d=((n,,)*(^))+e; e=(n,,); n=((-)^(n,));(e==) (d==k)  n*; e=;t=;;(e==) (d==)(n*(/))(n*(/));; a.(n,e-)*(t+(d/(^)));; b=n;  (n) l;( n) n=();(n==) ;;;l=a.(u,(,),(,)+n-);(n) e= n=(+k),#l  e=e..a.(l,n,n)  e;; k=#a.(())~=  e=n;  (...){...},a.(,...)   () e={}; u={}; o={}; s={u,o,,e}; e=() r={} d=,e   l=(); e;(l==) e=(()~=#{});(l==)  n=(); k  a.(a.(n),) n=a.(n); e=n;(l==) e=();;r[d]=e;; e=,() o[e-(#{})]=();;s[]=(); a=,()  e=();((e,,)==)  o=(e,,); _=(e,,); e={(),(),,};(o==) e[t]=();e[h]=();(o==#{}) e[t]=();(o==c[]) e[t]=()-(^)(o==c[]) e[t]=()-(^)e[h]=();;((_,,)==) e[d]=r[e[d]] ((_,,)==) e[t]=r[e[t]] ((_,,)==) e[h]=r[e[h]] u[a]=e; ; s;;  (l,e,n) d=e; d=n; (a.(a.(({a.(l)})[],e),n))   (b,e,_)  (...) f,z,u,m,p,n,s,g,k,c,ee,l; e=;-<e   e>   e<   ==e  c=a.(,...)-;ee={}; g={};k={...};   >e  l=(); e=-;    >=e  f=(,,,,b);z=(,,,,b);  e~=-   l=,   <e  n=-;s=-;;;u=(,,,,b);p=j m=;;; n=-;s=-;   e=e+;; e=,c  (e>=u) g[e-u]=k[e+]; l[e]=k[e+];;; e=c-u+  e; r;  (...)         n<-  n=n+  e=f[n];r=e[ne]; r>   >r   <r   <=r   r<   r<=  l[e[d]]=(z[e[t]],,_);  r>=   o=,   >r   e=e[d],e[t] l[e]=;;;; r=,   <=r   >=r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  <r   l[e[d]] n=n+; n=e[t];; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];    ==r  l[e[d]]=_[e[t]];n=n+;e=f[n]; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];   ;;  e=e[d],e[t] l[e]=;;    r<=   u,b,_,a,c,k,s,r; r=,   >r  -<r   _=,   >r  u=e[d]l[u]((l,u+,e[t]))n=n+;e=f[n];;;u=e[d];b=l[e[t]];l[u+]=b;l[u]=b[e[h]];n=n+;e=f[n];;; u=e[d]l[u]((l,u+,e[t]))n=n+;e=f[n];   r>    ~=r  r=; r>-   r>=   r<   r>=    >r  k=_[c];;;s=_[a]; ; s=_[a];   <r   e=,   ~=r  r=-;;;(s,k);;; r=-;    <r   r~=   e=,   ~=r  a=d;;;c=t;;; a=d;  _=e;  r=r+  ;;r=; r>-   r>=   r<   ~=r    ~=r  s=_[a];;;k=_[c]; ; s=_[a];   r>  r=-; (s,k);    <r  -<=r   e=,   r<  a=d;;;c=t;;; a=d;  _=e;  r=r+  n=n+;e=f[n]; ; r=; r>-   r>=   r<   ~=r    ~=r  s=_[a];;;k=_[c]; ; s=_[a];   r>  r=-; (s,k);    <r  -<=r   e=,   r<  a=d;;;c=t;;; a=d;  _=e;  r=r+  n=n+;e=f[n];     r>   f,h,a,r,_,o; n=; n>-   >=n   <=n   <=n    n~=  r=l;;;a=t; ; r=l;   n~=  h=d; f=e;    n<=   <n   e=,   n~=  o=f[h];;;_=r[f[a]];;; o=f[h];   ==n  n=-; l[o]=_;   n=n+    r=,   <=r   >r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  ~=r    ~=r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;; l[e[d]] n=n+; n=e[t];; ;  l[e[d]] n=n+; n=e[t];;   -<=r    r~=  l[e[d]]=_[e[t]];n=n+;e=f[n];;;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n]; ; l[e[d]]=_[e[t]];n=n+;e=f[n];        <=r   r>=   ~=r    r~=   r,_; a=,   a<=   <=a   ~=a    a~=  r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];;;r=e[d]l[r]=l[r]((l,r+,e[t]))n=n+;e=f[n]; ; r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];  (e[d],e[t]);n=n+;e=f[n];   <=a   a~=   o=,   ~=a  r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];;;(e[d],e[t]);;; r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];   <=a    >a  (e[d],e[t]);n=n+;e=f[n];;;r=e[d]l[r]=l[r]((l,r+,e[t]))n=n+;e=f[n]; ; (e[d],e[t]);n=n+;e=f[n];    ;; a,s,c,p,b,k,u,r; r=,   r<=   r>   ==r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n]; l[e[d]]=_[e[t]];n=n+;e=f[n];  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];   r<=   <r    ~=r  r=; r>-   r<=   <=r  -~=r   e=,   >r  p=d;;;b=t;;; b=t;  c=e;   <r   <r    ~=r  (u,k);;;r=-; ; (u,k);   ==r  u=c[p]; k=c[b];   r=r+  n=n+;e=f[n];;;a=e[d];s=l[e[t]];l[a+]=s;l[a]=s[e[h]];n=n+;e=f[n]; ; r=; r>-   r<=   <=r  -~=r   e=,   >r  p=d;;;b=t;;; b=t;  c=e;   <r   <r    ~=r  (u,k);;;r=-; ; (u,k);   ==r  u=c[p]; k=c[b];   r=r+  n=n+;e=f[n];   <r    r>  a=e[d];s=l[e[t]];l[a+]=s;l[a]=s[e[h]];;;a=e[d]l[a]=l[a]((l,a+,e[t]))n=n+;e=f[n]; ; a=e[d];s=l[e[t]];l[a+]=s;l[a]=s[e[h]];     ;  r,_; a=,   a<=   <=a   ~=a    a~=  r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];;;r=e[d]l[r]=l[r]((l,r+,e[t]))n=n+;e=f[n]; ; r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];  (e[d],e[t]);n=n+;e=f[n];   <=a   a~=   o=,   ~=a  r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];;;(e[d],e[t]);;; r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];   <=a    >a  (e[d],e[t]);n=n+;e=f[n];;;r=e[d]l[r]=l[r]((l,r+,e[t]))n=n+;e=f[n]; ; (e[d],e[t]);n=n+;e=f[n];       r,a; o=,   >o   >o  l[e[d]]=_[e[t]];n=n+;e=f[n];  o>-   r=,   >o  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;;l[e[d]]=l[e[t]];n=n+;e=f[n];;; l[e[d]]=l[e[t]];n=n+;e=f[n];    >=o   ~=o   h=,   o~=  l[e[d]]=_[e[t]];n=n+;e=f[n];;;r=e[d]l[r]=l[r](l[r+])n=n+;e=f[n];;; l[e[d]]=_[e[t]];n=n+;e=f[n];   <o   _=,   <o  (e[d],e[t]);;;r=e[d];a=l[e[t]];l[r+]=a;l[r]=a[e[h]];n=n+;e=f[n];;; r=e[d];a=l[e[t]];l[r+]=a;l[r]=a[e[h]];n=n+;e=f[n];       <=r   n=,   >r  (e[d],e[t]);;; e=e[d]l[e]=l[e](l[e+]);; (e[d],e[t]);     r>   r>=   r<    ;  <r    ~=r    ;;; r,_;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];r=e[d]l[r]((l,r+,e[t])) ;  r,_;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];r=e[d]l[r]((l,r+,e[t]))    r>=    >r   r=,   r<   r~=-   o=,   ~=r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;;l[e[d]]=_[e[t]];n=n+;e=f[n];;; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];   r>   >r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  l[e[d]] n=n+; n=e[t];;  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];   ;; e=e[d]l[e]=l[e]((l,e+,s)) ;  e=e[d]l[e]=l[e]((l,e+,s))    >=r   <=r   f=,   ~=r  (l[e[d]]==e[h]) n=n+; n=e[t];;;;  l[e[d]] ;; (l[e[d]]==e[h]) n=n+; n=e[t];;   >r  l[e[d]][e[t]]=l[e[h]];  <r   f=,   >r   l[e[d]] n=n+; n=e[t];;;; n=e[d]l[n]((l,n+,e[t]));;  n=e[d]l[n]((l,n+,e[t]))       r>=   <r   <r   <r   ~=r   o=,   ~=r   s,r,a,b,k,_,c,u,o; f=; f>-   f>   >f   ~=f    f>  o=c==u  r[_] +a;;;c=s[b];u=s[k]; ; o=c==u  r[_] +a;   f~=   e=,   f<  n=o;;;f=-;;; n=o;    >f  s=l;  f~=  b=r[d];k=r[h];_=t; r=e;a=n;   f=f+  ;; r=,   r>   r>=   o=,   r<  l[e[d]]=_[e[t]];n=n+;e=f[n];;;(l[e[d]]==e[h]) n=n+; n=e[t];;;; l[e[d]]=_[e[t]];n=n+;e=f[n];  -~=r   h=,   ~=r  l[e[d]]=(e[t]~=);n=n+;e=f[n];;;_[e[t]]=l[e[d]];n=n+;e=f[n];;; _[e[t]]=l[e[d]];n=n+;e=f[n];   ;;  c,r,a,b,k,u,_,s,o; f=; f>-   f>   >f   ~=f    f>  o=_==s  r[u] +a;;;_=c[b];s=c[k]; ; o=_==s  r[u] +a;   f~=   e=,   f<  n=o;;;f=-;;; n=o;    >f  c=l;  f~=  b=r[d];k=r[h];u=t; r=e;a=n;   f=f+    l[e[d]]=l[e[t]][e[h]];   r>=   <r    r~=    l[e[d]] n=n+; n=e[t];;;;(l[e[d]]==e[h]) n=n+; n=e[t];; ;   l[e[d]] n=n+; n=e[t];;  _[e[t]]=l[e[d]];    >=r   r~=   n=,   r~=   d=e[d]; n=l[e[t]];l[d+]=n;l[d]=n[e[h]];;; n=e[d] d,e=(l[n]((l,n+,e[t])))s=e+n-  e=; n=n,s  e=e+;l[n]=d[e];;;;  d=e[d]; n=l[e[t]];l[d+]=n;l[d]=n[e[h]];   <=r   r~=   a=,   r~=   r,_;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];r=e[d]l[r]((l,r+,e[t]));;l[e[d]]=(z[e[t]],,_);;;  r,_;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];r=e[d]l[r]((l,r+,e[t]))   r,o;l[e[d]]=_[e[t]];n=n+;e=f[n];l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];r=e[d]l[r]=l[r](l[r+])n=n+;e=f[n];l[e[d]]=_[e[t]];n=n+;e=f[n];r=e[d];o=l[e[t]];l[r+]=o;l[r]=o[e[h]];n=n+;e=f[n];(e[d],e[t]);     r>=   >r   r~=   a=,   >r   n=e[d]l[n]=l[n]((l,n+,e[t]));; o,b,s,a,c,k,u,r; r=,   r<   r>=  -~=r    r~=  l[e[d]]=l[e[t]];n=n+;e=f[n];;;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n]; ; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  l[e[d]]=_[e[t]];n=n+;e=f[n];   >r   r>=   h=,   ~=r  o=e[d]l[o]=l[o](l[o+])n=n+;e=f[n];;;l[e[d]]=_[e[t]];n=n+;e=f[n];;; o=e[d]l[o]=l[o](l[o+])n=n+;e=f[n];   r>=    >r  o=e[d];b=l[e[t]];l[o+]=b;l[o]=b[e[h]];n=n+;e=f[n];;;r=; r>-   r>   <=r   ==r  r=-; (u,k);   r~=-    ~=r  u=s[a];;;k=s[c]; ; u=s[a];    <=r  -<r    r<  a=d;;;c=t; ; a=d;  s=e;  r=r+   ; r=; r>-   r>   <=r   ==r  r=-; (u,k);   r~=-    ~=r  u=s[a];;;k=s[c]; ; u=s[a];    <=r  -<r    r<  a=d;;;c=t; ; a=d;  s=e;  r=r+      ;;  n=e[d]l[n]=l[n]((l,n+,e[t]))   r>   ~=r   r,_; a=,   <a   <=a    <a  (e[d],e[t]);;;(e[d],e[t]);n=n+;e=f[n]; ; (e[d],e[t]);n=n+;e=f[n];  -~=a   s=,   ~=a  r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];;;r=e[d]l[r]((l,r+,e[t]))n=n+;e=f[n];;; r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];     r,_; a=,   >=a   a<  r=e[d]l[r]((l,r+,e[t]))n=n+;e=f[n]; r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];   ~=a  (e[d],e[t]); (e[d],e[t]);n=n+;e=f[n];      r=,   r<  -<r    ~=r  l[e[d]]=_[e[t]];n=n+;e=f[n];;;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n]; ; l[e[d]]=_[e[t]];n=n+;e=f[n];   r<=  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n]; -~=r   o=,   ~=r    l[e[d]] n=n+; n=e[t];;;;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;;   l[e[d]] n=n+; n=e[t];;        <=r   <r   r>=    >r   h;h=e[d]l[h]((l,h+,e[t]))n=n+;e=f[n];  ;;; n=e[d] d,e=(l[n]((l,n+,e[t])))s=e+n-  e=; n=n,s  e=e+;l[n]=d[e];; ;  h;h=e[d]l[h]((l,h+,e[t]))n=n+;e=f[n];  ;   _; r=,   <=r   r>   r==  l[e[d]][e[t]]=l[e[h]]; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];   r~=-    r~=  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;;_=e[d]l[_]=l[_]((l,_+,e[t]))n=n+;e=f[n]; ; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];      r~=  l[e[d]]=_[e[t]]; n=e[t];       <=r   <r   r>=   r>=   r>   <=r   n=,   r~=   n=e[d]l[n]=l[n]((l,n+,e[t]));;l[e[d]]=l[e[t]][e[h]];;; l[e[d]]=l[e[t]][e[h]];   r=,   r<=   r>  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n]; l[e[d]]=_[e[t]];n=n+;e=f[n];   <=r   r>=    ~=r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;;  l[e[d]] n=n+; n=e[t];; ;   l[e[d]] n=n+; n=e[t];;  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];      r>   <r    >r   _,r,o,a,u,s,k,c,b; f=; f>-   >f   f<  _=l;  f~=-    f~=  r=e;o=n;;;a=r[d];u=r[h];s=t; ; r=e;o=n;    f>   f>    <f  f=-;;;n=b; ; f=-;   ~=f  b=k==c  r[s] +o; k=_[a];c=_[u];   f=f+  ;; r,a; _=,   <_   _>  (e[d],e[t]); (e[d],e[t]);n=n+;e=f[n];   _>=-    <_  r=e[d];a=l[e[t]];l[r+]=a;l[r]=a[e[h]];n=n+;e=f[n];;;r=e[d]l[r]((l,r+,e[t]))n=n+;e=f[n]; ; r=e[d]l[r]((l,r+,e[t]))n=n+;e=f[n];    ;  r,a; _=,   <_   _>  (e[d],e[t]); (e[d],e[t]);n=n+;e=f[n];   _>=-    <_  r=e[d];a=l[e[t]];l[r+]=a;l[r]=a[e[h]];n=n+;e=f[n];;;r=e[d]l[r]((l,r+,e[t]))n=n+;e=f[n]; ; r=e[d]l[r]((l,r+,e[t]))n=n+;e=f[n];      l[e[d]] n=n+; n=e[t];;    r<   ~=r    r~=  n=e[t];;; r,u,k,c,a;l[e[d]]=_[e[t]];n=n+;e=f[n];r=e[d];u=l[e[t]];l[r+]=u;l[r]=u[e[h]];n=n+;e=f[n];(e[d],e[t]);n=n+;e=f[n];r=e[d]k,c=(l[r]((l,r+,e[t])))s=c+r- a=; e=r,s  a=a+;l[e]=k[a];;n=n+;e=f[n];r=e[d]l[r]=l[r]((l,r+,s))n=n+;e=f[n];r=e[d]l[r]=l[r]()n=n+;e=f[n];l[e[d]]=l[e[t]][e[h]]; ;  r,u,k,c,a;l[e[d]]=_[e[t]];n=n+;e=f[n];r=e[d];u=l[e[t]];l[r+]=u;l[r]=u[e[h]];n=n+;e=f[n];(e[d],e[t]);n=n+;e=f[n];r=e[d]k,c=(l[r]((l,r+,e[t])))s=c+r- a=; e=r,s  a=a+;l[e]=k[a];;n=n+;e=f[n];r=e[d]l[r]=l[r]((l,r+,s))n=n+;e=f[n];r=e[d]l[r]=l[r]()n=n+;e=f[n];l[e[d]]=l[e[t]][e[h]];   r<   e=e[d],e[t] l[e]=;;  ~=r   r,o;l[e[d]]=_[e[t]];n=n+;e=f[n];l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];r=e[d]l[r]=l[r](l[r+])n=n+;e=f[n];l[e[d]]=_[e[t]];n=n+;e=f[n];r=e[d];o=l[e[t]];l[r+]=o;l[r]=o[e[h]];n=n+;e=f[n];(e[d],e[t]); l[e[d]]=l[e[t]];      >=r   >=r   r~=   _=,   r~=   _,s,a,u,c,p,b,k,r; r=,   <r   r>   <=r   h=,   ~=r  _=e[d]l[_]((l,_+,e[t]));;r=; r>-   <=r   <=r   >r  l[k]=b; r=-;   r~=  b=p[a[c]]; k=a[u];    r<=  -<r    <r  u=d;;;a=e; ; u=d;   <=r   e=,   r~=  c=t;;;p=l;;; c=t;   r=r+  n=n+;e=f[n];;; _=e[d]l[_]((l,_+,e[t]))  r=; r>-   <r   >=r   <r  k=a[u]; b=p[a[c]];   >r  l[k]=b; r=-;    r<=   r==  a=e; u=d;   r~=  p=l; c=t;   r=r+  n=n+;e=f[n];   <=r   r>-    ~=r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;;_=e[d];s=l[e[t]];l[_+]=s;l[_]=s[e[h]];n=n+;e=f[n]; ; _=e[d];s=l[e[t]];l[_+]=s;l[_]=s[e[h]];n=n+;e=f[n];  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];   ;; e=e[d]l[e]=l[e]();;  _,a,s,u,c,k,p,b,r; r=,   <r   r>   <=r   h=,   ~=r  _=e[d]l[_]((l,_+,e[t]));;r=; r>-   <=r   <=r   >r  l[b]=p; r=-;   r~=  p=k[s[c]]; b=s[u];    r<=  -<r    <r  u=d;;;s=e; ; u=d;   <=r   e=,   r~=  c=t;;;k=l;;; c=t;   r=r+  n=n+;e=f[n];;; _=e[d]l[_]((l,_+,e[t]))  r=; r>-   <r   >=r   <r  b=s[u]; p=k[s[c]];   >r  l[b]=p; r=-;    r<=   r==  s=e; u=d;   r~=  k=l; c=t;   r=r+  n=n+;e=f[n];   <=r   r>-    ~=r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;;_=e[d];a=l[e[t]];l[_+]=a;l[_]=a[e[h]];n=n+;e=f[n]; ; _=e[d];a=l[e[t]];l[_+]=a;l[_]=a[e[h]];n=n+;e=f[n];  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];      >r   r=,   r>=   r>=   r<  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  l[e[d]] n=n+; n=e[t];;  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];   r>-   o=,   ~=r  l[e[d]]=_[e[t]];n=n+;e=f[n];;;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;; l[e[d]]=_[e[t]];n=n+;e=f[n];     r>=    ~=r  l[e[d]]=(e[t]~=);;; r,_;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];r=e[d]l[r]((l,r+,e[t])) ; l[e[d]]=(e[t]~=);     r>   <r   r>=   n=,   r<  (e[d],e[t]);;;l[e[d]][e[t]]=l[e[h]];;; (e[d],e[t]);   r,o; _=,   <=_   _>-    _~=  (e[d],e[t]);n=n+;e=f[n];;;(e[d],e[t]); ; (e[d],e[t]);n=n+;e=f[n];  r=e[d];o=l[e[t]];l[r+]=o;l[r]=o[e[h]];n=n+;e=f[n];     r==   e=e[d]l[e]=l[e]()   l[e[d]] n=n+; n=e[t];;      <=r   r>=   >=r   r<   r,_;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];r=e[d]l[r]((l,r+,e[t]))  <=r    ~=r   r=,   r>   <=r   r~=-    r<  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;;  l[e[d]] n=n+; n=e[t];; ;   l[e[d]] n=n+; n=e[t];;  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  -<=r   o=,   ~=r  l[e[d]]=_[e[t]];n=n+;e=f[n];;;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];   ;; r,_; a=,   >a   a~=-   s=,   <a  r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];;;r=e[d]l[r]((l,r+,e[t]))n=n+;e=f[n];;; r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];   a~=-   h=,   <a  (e[d],e[t]);;;(e[d],e[t]);n=n+;e=f[n];;; (e[d],e[t]);    ;  r=,   r>   <=r   r~=-    r<  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;;  l[e[d]] n=n+; n=e[t];; ;   l[e[d]] n=n+; n=e[t];;  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  -<=r   o=,   ~=r  l[e[d]]=_[e[t]];n=n+;e=f[n];;;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];       >=r   r=,   r<   ~=r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n]; l[e[d]]=_[e[t]];n=n+;e=f[n];   <r   r==  (l[e[d]]~=l[e[h]]) n=n+; n=e[t];; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];     >r   n=e[d]l[n]((l,n+,e[t]))  r=,   >=r   r>=   r~=  l[e[d]]=_[e[t]];n=n+;e=f[n]; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  l[e[d]]=_[e[t]];n=n+;e=f[n];   <=r   r>   o=,   <r  (l[e[d]]~=l[e[h]]) n=n+; n=e[t];;;;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];        >=r   r==  l[e[d]]=_[e[t]];  r=,   r<=   r~=-   o=,   >r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];   r<=  l[e[d]]=_[e[t]];n=n+;e=f[n];  r>=   o=,   <r  l[e[d]][e[t]]=l[e[h]];;;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];       >=r   e=e[d]l[e]=l[e]((l,e+,s))  ~=r   a=,   r<   r,o;l[e[d]]=_[e[t]];n=n+;e=f[n];l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];r=e[d]l[r]=l[r](l[r+])n=n+;e=f[n];l[e[d]]=_[e[t]];n=n+;e=f[n];r=e[d];o=l[e[t]];l[r+]=o;l[r]=o[e[h]];n=n+;e=f[n];(e[d],e[t]);;; _,a,s,u,c,b,k,r; r=,   r>   r~=  (e[d],e[t]);n=n+;e=f[n]; r=; r>-   r>   r<=   ==r  b=s[c]; k=s[u];   >r  (k,b); r=-;    r>  -<r   e=,   r>  c=t;;;u=d;;; u=d;  s=e;  r=r+     r>-   s=,   r<  _=e[d]l[_]((l,_+,e[t]))n=n+;e=f[n];;;_=e[d];a=l[e[t]];l[_+]=a;l[_]=a[e[h]];n=n+;e=f[n];;; _=e[d];a=l[e[t]];l[_+]=a;l[_]=a[e[h]];n=n+;e=f[n];   ;;  r,o;l[e[d]]=_[e[t]];n=n+;e=f[n];l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];r=e[d]l[r]=l[r](l[r+])n=n+;e=f[n];l[e[d]]=_[e[t]];n=n+;e=f[n];r=e[d];o=l[e[t]];l[r+]=o;l[r]=o[e[h]];n=n+;e=f[n];(e[d],e[t]);      >r   <r   >=r   e=e[d]l[e]=l[e](l[e+]) -<r    ~=r  l[e[d]]=(e[t]~=);;; n=e[d]; d=l[e[t]];l[n+]=d;l[n]=d[e[h]]; ;  d=e[d]; n=l[e[t]];l[d+]=n;l[d]=n[e[h]];   -<=r    >r   r,_;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];r=e[d];_=l[e[t]];l[r+]=_;l[r]=_[e[h]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];l[e[d]]=l[e[t]];n=n+;e=f[n];r=e[d]l[r]((l,r+,e[t]));; o,a; r=,   r>   r>   ==r  o=e[d];a=l[e[t]];l[o+]=a;l[o]=a[e[h]];n=n+;e=f[n]; (e[d],e[t]);   ~=r  o=e[d]l[o]=l[o](l[o+])n=n+;e=f[n]; l[e[d]]=_[e[t]];n=n+;e=f[n];    <r   <=r   o=,   >r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;;l[e[d]]=l[e[t]];n=n+;e=f[n];;; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  l[e[d]]=_[e[t]];n=n+;e=f[n];    ;  o,a; r=,   r>   r>   ==r  o=e[d];a=l[e[t]];l[o+]=a;l[o]=a[e[h]];n=n+;e=f[n]; (e[d],e[t]);   ~=r  o=e[d]l[o]=l[o](l[o+])n=n+;e=f[n]; l[e[d]]=_[e[t]];n=n+;e=f[n];    <r   <=r   o=,   >r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;;l[e[d]]=l[e[t]];n=n+;e=f[n];;; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  l[e[d]]=_[e[t]];n=n+;e=f[n];       r>   <r   ~=r    r~=   r,a; _=,   _>=  -<_   h=,   ~=_  (e[d],e[t]);n=n+;e=f[n];;;(e[d],e[t]);;; (e[d],e[t]);n=n+;e=f[n];   ==_  r=e[d]l[r]((l,r+,e[t]))n=n+;e=f[n]; r=e[d];a=l[e[t]];l[r+]=a;l[r]=a[e[h]];n=n+;e=f[n];   ;;_[e[t]]=l[e[d]]; ; _[e[t]]=l[e[d]];    l[e[d]]    r>   a=,   <r   _,a,s,p,b,u,c,k,r; r=,   r>   <=r   r>=    ~=r  _=e[d]l[_]((l,_+,e[t]));;r=; r>-   <=r   r>   r==  l[k]=c; r=-;   r>  k=s[p]; c=u[s[b]];    >=r   ==r  p=d; s=e;   r==  b=t; u=l;   r=r+  n=n+;e=f[n]; ; _=e[d]l[_]((l,_+,e[t]))  l[e[d]]=l[e[t]];n=n+;e=f[n];   >r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  ==r  _=e[d];a=l[e[t]];l[_+]=a;l[_]=a[e[h]];n=n+;e=f[n]; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];    ;; r,a; o=,   >o   o<=  l[e[d]]=_[e[t]];n=n+;e=f[n];  o>=   r=,   o~=  l[e[d]]=l[e[t]];n=n+;e=f[n];;;l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];;; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];    >=o   o<  r=e[d]l[r]=l[r](l[r+])n=n+;e=f[n]; l[e[d]]=_[e[t]];n=n+;e=f[n];   o>   _=,   ~=o  (e[d],e[t]);;;r=e[d];a=l[e[t]];l[r+]=a;l[r]=a[e[h]];n=n+;e=f[n];;; r=e[d];a=l[e[t]];l[r+]=a;l[r]=a[e[h]];n=n+;e=f[n];    ;;  _,s,a,u,c,b,p,k,r; r=,   r>   <=r   r>=    ~=r  _=e[d]l[_]((l,_+,e[t]));;r=; r>-   <=r   r>   r==  l[k]=p; r=-;   r>  k=a[u]; p=b[a[c]];    >=r   ==r  u=d; a=e;   r==  c=t; b=l;   r=r+  n=n+;e=f[n]; ; _=e[d]l[_]((l,_+,e[t]))  l[e[d]]=l[e[t]];n=n+;e=f[n];   >r  l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];  ==r  _=e[d];s=l[e[t]];l[_+]=s;l[_]=s[e[h]];n=n+;e=f[n]; l[e[d]]=l[e[t]][e[h]];n=n+;e=f[n];          n=+n;;; m ; t=; _={}; h=(); d=;((n) l=n  f=  e= l={((r) f>   r  f=f+ e=(e+-r)% (e%== ((l)  n[l] e=e+ n[l]=();   ) l[](+r))(e%== ((l)  n[l] e=e+ n[l]=();t[]=(t[]*((()(),(d))-(t[],(d))))+;_[h]={};t=t[];h=h+t;   ) l[](r+))(e%== ((l)  n[l] e=e+ n[l]=();_[h]=();h=h+t;   ) l[](r+)) r ),((r) f>   r  f=f+ e=(e+-r)% (e%== ((l)  n[l] e=e+ n[l]=();d=;t={()()};d=d..;   ) l[](+r))(e%== ((l)  n[l] e=e+ n[l]=();   ) l[](r+))(e%== ((l)  n[l] e=e+ n[l]=();d={d..,d};_[h]=();h=h+(( a.RwBoBlQd)   );d[]=..d[];t[]=;   ) l[](r+)) r ),((d) f>   d  f=f+ e=(e+-d)% (e%== ((l)  n[l] e=e+ n[l]=();   ) l[](+d))(e%== ((l)  n[l] e=e+ n[l]=();   ) l[](d+))(e%== ((l)  n[l] e=e+ n[l]=();   ) l[](d+)) d )}l[]()){}; e=((_)); (...);  ((() n={} e=; l; a.RwBoBlQd  l=a.(g) l=  a.(l,a.EWXGOZSU) e=e+; e=e+; n[e]=;n[n[e]+]=; n;)(),...))(((n,e,l,d,t,f) f; n<   >=n   n~=-   f=,   ~=n    (),(,t,d,l,e),(,t,d,l);;;  (n,e,l) l   e=(n/^(e-))%^((l-)-(e-)+); e-e%;  e=^(e-);(n%(e+e)>=e)   ;;;;;;   (),(,t,d,l,e),(,t,d,l);   ~=n   f=,   n~=    ,, ;;;  (),(,t,d,l,e),(,t,d,l);;;   ,, ;    n>   n>=   n>    <n    (n,,l); ;;  ({},{[]=(e,l,d,t,n) n   e[n] t   e  e[l]=d  })  ;   (n,,l);     t[l];   n>=   f=,   n~=   n=d; h,t,r=();  () f,d,e,l=(l,(n,n),(n,n)+);();(l*h)+(e*t)+(d*r)+f;;;;; n=d;  () e=(l,(n,n),(n,n));(); e;;;;;  n=d;  () e=(l,(n,n),(n,n));(); e;;;   ),...)