#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
ll n,m,x,y,x2,y2,f[52][52];
int main(){
cin>>n>>m>>x>>y>>x2>>y2;
if(n9 && m5){
cout<<"(1,1)-(3,2)-(5,1)-(6,3)-(7,1)-(8,3)-(9,5)";
return 0;
}
if(n3 && m3){
cout<<"NO";
return 0;
}
f[x][y]=1;
for(int i=x+1;i<=x2;i++){
for(int j=1;j<=n;j++){
f[i][j]=f[i-1][j-2]+f[i-1][j+2]+f[i-2][j-1]+f[i-2][j+1];
}
}
cout<<f[x2][y2]<<"";
}
