#include<bits/stdc++.h>
using namespace std;
int n,m,k,l,qx,qy,zx,zy;
long long int a[10006][10005],b[10091];
int main(){
	scanf("%d%d%d",&n,&m,&k);
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			scanf("%d",&a[i][j]);
			a[i][j]=a[i-1][j]+a[i][j-1]+a[i][j]-a[i-1][j-1];
		}
	}
	for(int i=1;i<=k;i++){
		scanf("%d%d%d%d",&qx,&qy,&zx,&zy);
		b[i]=a[zx][zy]-a[zx][qy-1]-a[qx-1][zy]+a[qx-1][qy-1];
	}
	for(int i=1;i<=k;i++){
		printf("%.d\n",b[i]);
	}
}
/**************************************************************
	Problem: 2061
	User: zhengzihao
	Language: C++
	Result: Runtime Error
****************************************************************/