include

include <bits/stdc++.h>

include <math.h>

include

using namespace std; int fang[1001][1001] = { 0 }, sum[1001][1001] = { 0 }, q[200001][4] = { 0 }; int main() {

int n, m, q;
cin >> n >> m >> q;
for (int i = 1; i <= n; i++) {

	for (int j = 1; j <= m; j++) {
		scanf("%d",&fang[i][j]);
		sum[i][j] = sum[i - 1][j] + sum[i][j - 1] + fang[i][j] - sum[i - 1][j - 1];

	}
}

for (int i = 1; i <= q; i++) {
	int x1, y1, x2, y2;
	scanf("%d %d %d %d",&x1, &y1, &x2, &y2);
    printf("%d\n",sum[x2][y2] - sum[x1-1][y2] - sum[x2][y1-1] + sum[x1-1][y1-1]);
	
}

return 0;

}