#include<bits/stdc++.h>
using namespace std;
int n,m,k,a[1001][1001],b[1001][1001],sx1,sy1,sx2,sy2; 
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]-b[i-1][j-1]+a[i][j];
        }
    }
    for(int i=1;i<=k;i++){
        scanf("%d%d%d%d",&sx1,&sy1,&sx2,&sy2);
        printf("%d\n",b[sx2][sy2]-b[sx2][sy1-1]-b[sx1-1][sy2]+b[sx1-1][sy1-1]);
    }
  
  
  
    return 0;
}
 
/**************************************************************
	Problem: 2061
	User: chenruhong
	Language: C++
	Result: Accepted
	Time:505 ms
	Memory:9904 kb
****************************************************************/