#include #include #include #include using namespace std; const int dr[]={-1,1,0,0,-2,2,0,0,0}; const int dc[]={0,0,-1,1,0,0,-2,2,0}; int n,fe[366][4][4],can[366][3][3],vis[366][3][3][8][8][8][8]; inline bool Read() { scanf("%d",&n); if(n==0) return false; for(int i=1;i<=n;i++) for(int r=0;r<4;r++) for(int c=0;c<4;c++) scanf("%d",&fe[i][r][c]); return true; } int DFS(int ti,int r,int c,int x1,int x2,int x3,int x4) { if(ti==n) return 1; for(int i=0;i<9;i++) { int nr=r+dr[i],nc=c+dc[i]; #define A1 ((nr==0&&nc==0)?0:x1+1) #define A2 ((nr==0&&nc==2)?0:x2+1) #define A3 ((nr==2&&nc==2)?0:x3+1) #define A4 ((nr==2&&nc==0)?0:x4+1) if(nr<0||nr>2||nc<0||nc>2||!can[ti+1][nr][nc]||vis[ti+1][nr][nc][A1][A2][A3][A4]) continue; if(A1<=6&&A2<=6&&A3<=6&&A4<=6) { vis[ti+1][nr][nc][A1][A2][A3][A4]=1; if(DFS(ti+1,nr,nc,A1,A2,A3,A4)) return 1; } } return 0; } void Solve() { memset(vis,0,sizeof(vis)); for(int i=1;i<=n;i++) for(int r=0;r<3;r++) for(int c=0;c<3;c++) can[i][r][c]=1-(fe[i][r][c]|fe[i][r+1][c]|fe[i][r][c+1]|fe[i][r+1][c+1]); if(n>1) printf("%d\n",DFS(1,1,1,1,1,1,1)); else printf("%d\n",can[1][1][1]); } int main() { #ifdef local freopen("pro.in","r",stdin); #endif while(Read()) Solve(); return 0; } /* 1 0 0 1 1 1 0 0 1 0 1 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 0 */