#include <iostream>
#include <cstdio>
using namespace std;
const int N=30;
int a[N][N],b[N][N];
int n,m;
void makeminusone()
{
	for(int i=1;i<=n;i++)
		for(int j=1;j<=m;j++)
			a[i][j]=-1;
}
int main()
{
	int k,z,i,j,c,d,x,y,e,f,g,h;
	cin>>n>>m;
	cin>>x>>y;
	for(i=1;i<=n;i++)
		for(j=1;j<=m;j++)
		{
			cin>>a[i][j];
			b[i][j]=-1;
		}
	b[x][y]=a[x][y];
	for(k=1;k<=n;k++)
		for(z=1;z<=m;z++)
		{
			for(i=1;i<=n;i++)
				for(j=1;j<=m;j++)
				{
					if(b[i][j]!=-1)
					{
						if(i+1<=n)
							b[i+1][j]=max(b[i+1][j],b[i][j]-a[i+1][j]);
						if(j+1<=m)
							b[i][j+1]=max(b[i][j+1],b[i][j]-a[i][j+1]);
					}
				}
		}
	if(b[n][m]==-1)
		cout<<"N"<<endl;
	else
		cout<<"Y"<<endl<<b[n][m]<<endl;
	return 0;
}