#include<bits/stdc++.h>
using namespace std;
int n,m,k;
int x,a[1001][1001];
int xs,ys,xz,yz;
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",&x);
			if(i==1&&j==1) a[i][j]=x;
			else a[i][j]=a[i-1][j]+a[i][j-1]-a[i-1][j-1]+x;
		}
	}
	while(k--){
		scanf("%d%d%d%d",&xs,&ys,&xz,&yz);
		printf("%d\n",a[xz][yz]-a[xs-1][yz]-a[xz][ys-1]+a[xs-1][ys-1]);
	}
	return 0;
}

/**************************************************************
	Problem: 2061
	User: linshilong
	Language: C++
	Result: Accepted
	Time:533 ms
	Memory:5992 kb
****************************************************************/