#include<bits/stdc++.h>
using namespace std;
int n,m,k;
int a[1005][1005],b[1005][1005];
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];
			b[i][j]=b[i-1][j]+b[i][j-1]+a[i][j]-b[i-1][j-1];
		}
	}
	while(k--){
		int x_1,y_1,x_2,y_2;
		cin>>x_1>>y_1>>x_2>>y_2;
		cout<<b[x_2][y_2]-b[x_2][y_1-1]-b[x_1-1][y_2]+b[x_1-1][y_1-1]<<endl;
	}
	
	


    return 0;
}


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