#include "stdio.h"
#include "stdlib.h"

int _[10000];

#define COUNT               20
#define N(O,P)              int O(){return P;}
#define O(P)                printf("%d\n",P)
#define a(b,c,d,e)          b: if(c()) goto d; else e();

N(A,
    (_[0]=0,
            _[_[0]+4]
                     =
                     0
                     )
                     )
                     N(B,(_[_[0]+4]>=COUNT
))N(C,
(
_[
_[
0]+3]=0))N(D,(_[_[0]+4]>=2))N(E,(_[_[0]+
                                5]=1))N(
                                F,(_[0]
                                +=3,_[1]=
_[0],_[1]++,_[1]=_[_[1]],_[1]--,_[2
]=_[0],_[2]+=4,_[_[2]]=_[1],_[1]=_[0],_[1
]+=3,_[_[1]]=1))N(G,(_[1]=_[0],_[1]+=2,_[
2]=_[1],_[2]+=3,_[_[1]]=_[_[2]],_[1]+=2,_
[2]-=4,_[2]=_[_[2]],_[2]-=2,_[_[1]]=_[2]
,_[1]--,_[_[1]]=2))N(H,(_[_[0]+2]+=_[_[0]
+5],_[0]-=3))N(I,(_[_[0]+3]==1))N(J,(_[_[
0]+3]==2))N(K,(O(_[_[0]+5]),_[_[0]+4]++))

N(L,0)N(M,1)

void main( int argc, char* argv[] )
{
    a(P,L,P,A)
    a(Q,B,Z,C)
    a(R,D,S,E)
    a(f,M,X,M)
    a(S,L,Q,F)
    a(T,M,R,L)
    a(U,L,T,G)
    a(V,M,R,D)
    a(W,L,V,H)
    a(X,I,U,M)
    a(Y,J,W,L)
    a(g,L,Y,K)
    a(h,M,Q,L)
Z:	;
} // main()