#include<bits/stdc++.h>
using namespace std;
int n,m,k;
int a[1005][1005],b[1005][1005];
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]+a[i][j]-b[i-1][j-1];
		}
	}
	for(int i=1;i<=k;i++){
		int x1,y1,x2,y2;
		cin>>x1>>y1>>x2>>y2;
		cout<<b[x2][y2]-b[x2][y1-1]-b[x1-1][y2]+b[x1-1][y1-1]<<endl;
	}
	
	


    return 0;
}


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