100分求调

//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
#include<bits/stdc++.h>
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
using namespace std;
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
char a[110][110];
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
char ui[4][4]={
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
	'0','0','0','0',
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
	'0','1','1','0',
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
	'0','1','1','0',
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
	'0','0','0','0',
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
};
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
bool check(int x,int y)
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
{
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
	for(int i=0;i<4;i++)
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
	{
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		for(int j=0;j<4;j++)
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		{
			if(a[i+x][j+y]!=ui[i][j])
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
			{
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';				
				return false;
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
			}
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		}
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
	}
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
	return true;
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
}
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
int main()
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
{
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
	int T;
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
	cin>>T;
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
	while(T--)
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
	{
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		bool f=0;
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		int n,m;
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		cin>>n>>m;
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		for(int i=0;i<n;i++)
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		{
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
			for(int j=0;j<m;j++)
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
			{
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
				cin>>a[i][j];
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
			}
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		}
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		for(int i=0;i<n-3;i++)
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		{
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
			for(int j=0;j<m-3;j++)
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
			{
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
				if(check(i,j))
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
				{
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
					f=1;
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
					break;
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
				}
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
			}
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
			if(f) break;
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		}
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		if(f)
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		{
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
			cout<<"Yes"<<endl;
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		}
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
		else cout<<"No"<<endl;
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
	}
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
	return 0;
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';
}
//a[i][j]=='0'&&a[i][j+1]=='0'&&a[i][j+2]=='0'&&a[i][j+3]=='0'&&a[i+3][j]=='0'&&a[i+3][j+1]=='0'&&a[i+3][j+2]=='0'&&a[i+3][j+3]=='0'&&a[i+1][j]=='0'&&a[i+2][j]=='0'&&a[i+1][j+3]=='0'&&a[i+2][j+3]=='0';