#include<iostream>

using namespace std;

const int N = 1e3 + 10;

int a[N][N], s[N][N];

int main()

{

    int n, m, q;

    scanf("%d %d %d", &n, &m, &q);

    for (int i = 1; i <= n; i ++)

        for (int j = 1; j <= m; j ++)

            scanf("%d", &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, x2, y2;

        scanf("%d %d %d %d", &x1, &y1, &x2, &y2);

        printf("%d\n", s[x2][y2] - s[x1 - 1][y2] - s[x2][y1 - 1] + s[x1 - 1][y1 - 1]);

    }

    return 0;

}