#include<bits/stdc++.h>
using namespace std;
int n,m,k;
int a[1001][1001];
int b[1001][1001];
int x,xx,y,yy;
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];
	} 
	for(int i=1;i<=k;i++){
		cin>>x>>y>>xx>>yy;
		cout<<b[xx][yy]+b[x-1][y-1]-b[xx][y-1]-b[x-1][yy]<<endl;
	}
	return 0;
}
/**************************************************************
	Problem: 2061
	User: liuchengxuan
	Language: C++
	Result: Time Limit Exceed
****************************************************************/