#include<bits/stdc++.h>
using namespace std;
int n,m,k,a[1003][1003],b[1003][1003],a1,a2,b1,b2,ans;
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][j-1]+b[i-1][j]+a[i][j]-b[i-1][j-1];
		}
	}
	while(k--){
		scanf("%d %d %d %d",&a1,&a2,&b1,&b2);
		ans=b[b1][b2]-b[a1-1][b2]-b[b1][a2-1]+b[a1-1][a2-1];
		printf("%d",&ans);
	}
}
/**************************************************************
	Problem: 2061
	User: wuyunfeng
	Language: C++
	Result: Wrong Answer
****************************************************************/