#include<bits/stdc++.h>
using namespace std;
int a[100][100],s[100][100];
int main(){
	int n,m,ax,ay,bx,by,t;
	scanf("%d%d%d",&n,&m,&t);
	for(int i = 1;i<=n;i++)
		for(int j = 1;j<=m;j++){
			scanf("%d",&a[i][j]);
			s[i][j] = s[i-1][j]+s[i][j-1]-s[i-1][j-1]+a[i][j];
		}
	while(t--){
		scanf("%d%d%d%d",&ax,&ay,&bx,&by);
		printf("%d\n",s[bx][by]-s[ax-1][by]-s[bx][ay-1]+s[ax-1][ay-1]);
	}
	return 0;
}