#include<bits/stdc++.h>
using namespace std;
const int N = 1010;
int n,m,q;
int a[N][N];
int main(){
    cin>>n>>m>>q;
    for(int i = 1;i<=n;i++)
        for(int j = 1;j<=m;j++){
            cin>>a[i][j];
            a[i][j]+=a[i-1][j]+a[i][j-1]-a[i-1][j-1];//利用方格图面积来理解;
        }
    for(int i = 1;i<=q;i++){
        int x1,y1,x2,y2;
        cin>>x1>>y1>>x2>>y2;
        cout<<a[x2][y2]-a[x1-1][y2]-a[x2][y1-1]+a[x1-1][y1-1]<<endl;//利用方格图面积来理解;
    }
    return 0;
}