#include<bits/stdc++.h>
using namespace std;
int n,m,k,x,y,p,q,a[1001][1001],b[1001][1001],ll; 
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",&x,&y,&p,&q);
        printf("%d\n",b[p][q]-b[x-1][q]-b[p][y-1]+b[x-1][y-1]);
    }
    return 0;
}
/**************************************************************
	Problem: 2061
	User: huangsheng
	Language: C++
	Result: Accepted
	Time:496 ms
	Memory:9904 kb
****************************************************************/