include <stdio.h>

int a[1005][1005], sum[1005][1005];

int main() {

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

}