daan

#include <bits/stdc++.h>
using namespace std;

int main(){
int n,m,a[510][510];
int sum=0;
cin >> n >> m;
for(int i = 1;i<=n;i++){
for(int j = 1;j<=m;j++){
cin >> a[i][j];
}
}

for(int i = 1;i <= n-1;i++){
    for(int j = 1;j <= m-1;j++){
      
        long long left = 1LL * a[i][j] * a[i+1][j+1];
        long long right = 1LL * a[i][j+1] * a[i+1][j];
        if(left == right){
            sum++;
        }
    }
}
cout << sum;
return 0;

}