#include<bits/stdc++.h>
using namespace std;
int n,m,b[1001][1001],h,k,sx1,sy1,sx2,sy2;
int main(){
    cin>>n>>m>>k; 
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            cin>>h;
            b[i][j]=h+b[i-1][j]+b[i][j-1]-b[i-1][j-1];
        }
    }
    while(k--){
        scanf("%d%d%d%d",&sx1,&sy1,&sx2,&sy2);
        printf("%d\n",b[sx2][sy2]-b[sx1-1][sy2]-b[sx2][sy1-1]+b[sx1-1][sy1-1]);
    }
    return 0;
}
/**************************************************************
	Problem: 2061
	User: wuzhehan
	Language: C++
	Result: Accepted
	Time:634 ms
	Memory:5992 kb
****************************************************************/