#include<bits/stdc++.h>
using namespace std;
int a[1010][1010],b[1010][1010];
int main(){
int n,m,k,x1,y1,x2,y2;
    cin>>n>>m>>k;
    for(int i=1;i<=n;i++)
	    for(int j=1;j<=m;j++){
    	cin>>a[i][j];
    	b[i][j]=b[i-1][j]+b[i][j-1]-b[i-1][j-1]+a[i][j];
    }   
    while(k--){
    	scanf("%d%d%d%d",&x1,&y1,&x2,&y2);
    	printf("%d\n",b[x2][y2]-b[x1-1][y2]-b[x2][y1-1]+b[x1-1][y1-1]);
    }
	return 0;
}
/**************************************************************
	Problem: 2061
	User: fuhongyi
	Language: C++
	Result: Accepted
	Time:656 ms
	Memory:10048 kb
****************************************************************/