#include<bits/stdc++.h>
#define x1 x_1
#define x2 x_2
#define y1 y_1
#define y2 y_2
using namespace std;
int n,m,x1,y1,x2,y2,k;
int a[1006][1006];
long long sum[1006][1006];
int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cin>>n>>m>>k;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			cin>>a[i][j];
			sum[i][j]=a[i][j]+sum[i][j-1]+sum[i-1][j]-sum[i-1][j-1];
		}
	}
	while(k--){
		cin>>x1>>y1>>x2>>y2;
		cout<<(sum[x2][y2]-sum[x2][y1-1]-sum[x1-1][y2]+sum[x1-1][y1-1])<<endl;
	}
	return 0;
}

/**************************************************************
	Problem: 2061
	User: chenxurui
	Language: C++
	Result: Time Limit Exceed
****************************************************************/