#include <iostream>
#include <cstring>
#include <algorithm>
using namespace std;
const int N = 1010;
int n,m,q;
int s[N][N];
int main()
{
    scanf("%d%d%d",&n,&m,&q);
    for (int i = 1; i <=n; i ++ )
        for (int j = 1; j <= m;j ++ )
            cin >> s[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];
    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]);
    }

}