#include<bits/stdc++.h>
using namespace std;
int n,m,k,a[1001][1001],b[1001][1001],sx1,sx0,sy1,sy0
;

int main(){
	scanf("%d%d%d",&n,&m,&k);
	for(int i=1;i<=n;i++){
		for(int j=1;i<=m;j++){
			scanf("%d",&a[i][j]);
			b[i][j]=b[i][j-1]+b[i-1][j]-b[i-1][j-1]+a[i][j];
		}
	}
	for(int i=1;i<=k;i++){
		 scanf("%d%d%d%d",&sx0,&sy0,&sx1,&sy1);
        printf("%d\n",b[sx1][sy1]-b[sx1][sy0-1]-b[sx0-1][sy1]+b[sx0-1][sy0-1]);
	}
	return 0;
}

/**************************************************************
	Problem: 2061
	User: liyunshuo
	Language: C++
	Result: Time Limit Exceed
****************************************************************/