#include<bits/stdc++.h>
using namespace std;
int n,x;
int a[101][101];
bool dfs(int x,int y,int p)
{
	if(x<1||y<1||x>n||y>n)return 0;
	p-=a[x][y];
	if(p<=0)return 0;
	if(x==n&&y==n)return 1;
	else return dfs(x-1,y,p)||dfs(x+1,y,p)||dfs(x,y+1,p)||dfs(x,y-1,p);
}
int main()
{
    cin>>n>>x;
    for(int i=1;i<=n;i++)
    for(int j=1;j<=n;j++)
    	cin>>a[i][j];
    if(dfs(1,1,x))cout<<"YES";
    else cout<<"NO";
    return 0;
}

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