#include<bits/stdc++.h>
using namespace std;
int n,m,k,l,o,r,t;
int a[1001][1001],b[1001][1001];
int main(){
    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",&l,&r,&o,&t);
        printf("%d\n",b[o][t]-b[o][r-1]-b[l-1][t]+b[l-1][r-1]);
    }
}
/**************************************************************
	Problem: 2061
	User: linxichen
	Language: C++
	Result: Accepted
	Time:703 ms
	Memory:9904 kb
****************************************************************/