#include<bits/stdc++.h>
using namespace std;
int n,m,k;
int a[1010][1010],arr[1010][1010];
int sx,sy,ex,ey;
int main(){
	cin>>n>>m>>k;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			scanf("%d",&a[i][j]);
			arr[i][j]=arr[i-1][j]+arr[i][j-1]-arr[i-1][j-1]+a[i][j];
		}
	}
	/*
	1 2 3
	2 4 6
	3 6 9
	*/
	for(int i=1;i<=k;i++){
		scanf("%d%d%d%d",&sx,&sy,&ex,&ey);
		//cout<<arr[ex][ey]<<" "<<arr[ex-1][ey]<<" "<<arr[ex][ey-1]<<" "<<arr[sx][sy];
		printf("%d\n",arr[ex][ey]-arr[sx-1][ey]-arr[ex][sy-1]+arr[sx-1][sy-1]);
	} 
	return 0;
}

/**************************************************************
	Problem: 2061
	User: chenyongtian
	Language: C++
	Result: Accepted
	Time:579 ms
	Memory:10048 kb
****************************************************************/