#include<bits/stdc++.h>
using namespace std;
int n, m, k;
int a[1005][1005], b[1005][1005];

int main() {
    // 读取输入数据
    scanf("%d %d %d", &n, &m, &k);
    
    // 构建前缀和数组
    for(int i = 1; i <= n; i++) {
        for(int j = 1; j <= m; j++) {
            scanf("%d", &a[i][j]);
            b[i][j] = b[i-1][j] + b[i][j-1] - b[i-1][j-1] + a[i][j];
        }
    }
    
    // 处理查询
    for(int q = 0; q < k; q++) {
        int x1, y1, x2, y2;
        scanf("%d %d %d %d", &x1, &y1, &x2, &y2);
        printf("%d\n", b[x2][y2] - b[x2][y1-1] - b[x1-1][y2] + b[x1-1][y1-1]);
    }

    return 0;
}    
/**************************************************************
	Problem: 2061
	User: caizhihao
	Language: C++
	Result: Accepted
	Time:535 ms
	Memory:9968 kb
****************************************************************/