#include <iostream>
using namespace std;
const int N = 1010;
int a[N][N], s[N][N];
int main(){
    int n, m, q;    cin >> n >> m >> q;
    for(int i = 1; i <= n; i ++ ){
        for(int j = 1; j <= m; j ++ ){
            cin >> a[i][j];
        }
    }
    for(int i = 1; i <= n; i ++ ){
        for(int j = 1; j <= m; j ++ ){
            s[i][j] = s[i - 1][j] + s[i][j - 1] - s[i - 1][j - 1] + a[i][j];
        }
    }
    while(q -- ){
        int x1, y1; cin >> x1 >> y1;
        int x2, y2; cin >> x2 >> y2;
        cout << s[x2][y2] - s[x1 - 1][y2] - s[x2][y1 - 1] + s[x1 - 1][y1 - 1] << endl;
    }
    return 0;
}