#include<bits/stdc++.h>
using namespace std;
int n,m,k;
int a[100000][100000],b[100000][100000],sx2,sy2,sx1,sx2;
int main(){
	scanf("%d%d%d",&n,&m,&k);
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			scanf("%d",&a[i][j]);
			b[i][j]=a[i][j]+a[i-1][j]+a[i][j-1]-a[i-1][j-1];
		}
	}
	while(k--){
		scanf("%d%d%d%d",&sx1,&sy1,&sx2,&sy2);
		printf("%d\n",b[sx2][sy2]-b[sx1-1][sy2]-b[sx1-1][sy2]+b[sx1-1][sxy-1]);
	}
	return 0;
}
/**************************************************************
	Problem: 2060
	User: chenyubo
	Language: C++
	Result: Compile Error
****************************************************************/