#include <iostream>

using namespace std;

const int N = 1010;
const int M = 200010;

int n,m,q;
int arr[N][N];
int x1,y1,x2,y2;
int ans[M];
int xsum[N][N];
int ysum[N];

int main()
{
    cin >> n >> m >> q;
    for(int i = 1;i <= n;i ++){
        for(int j = 1;j <= m;j ++){
            cin >> arr[i][j];
            xsum[i][j] = xsum[i][j - 1] + arr[i][j];
        }
    }
    for(int k = 1;k <= q;k ++){
        cin >> x1 >> y1 >> x2 >> y2;
        for(int i = x1;i <= x2;i ++){
            ans[k] += xsum[i][y2] - xsum[i][y1 - 1];
        }
    }
    for(int i = 1;i <= q ;i++){
        cout << ans[i] << endl;
    }
    return 0;
}