#include #define syosu(x) fixed< P; typedef pair pdd; typedef pair pll; typedef vector vi; typedef vector vvi; typedef vector vd; typedef vector vvd; typedef vector vl; typedef vector vvl; typedef vector vs; typedef vector

vp; typedef vector vvp; typedef vector vpll; typedef pair pip; typedef vector vip; const int inf=1<<30; const ll INF=1ll<<60; const double pi=acos(-1); const double eps=1e-9; const ll mod=1e6+7; const int dx[4]={0,1,0,-1},dy[4]={1,0,-1,0}; const int M=4; int a[M][M],b[M][M]; int main(){ for(int i=0;i>a[i][j]; b[i][j]=(i==3&&j==3?0:i*M+j+1); } while(1){ bool B=1; for(int i=0;i=0&&x=0&&y