#include<bits/stdc++.h>
using namespace std;
int n,m,k,x,y,xx,yy,a[1001][1001],b[1001][1001];
int main(){
	scanf("%d%d%d",&n,&m,&k);
	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];
		}
	}
	for(int i=1;i<=k;i++){
		scanf("%d%d%d%d",&x,&y,&xx,&yy);
		printf("%d",b[xx][yy]-b[xx][y-1]-b[x-1][yy]+b[x-1][y-1]);
	}
	return 0;
}
/**************************************************************
	Problem: 2061
	User: chenshuo
	Language: C++
	Result: Wrong Answer
****************************************************************/