#include<bits/stdc++.h>
using namespace std;
int n,m,k,a[1001][1001],v,w,x,y; 
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]);
			if(i==1)a[i][j]+=a[i][j-1];
			if(j==1)a[i][j]+=a[i-1][j];
		}
	}
	for(int i=2;i<=n;i++){
		for(int j=2;j<=m;j++){
			a[i][j]+=a[i-1][j]+a[i][j-1]-a[i-1][j-1];
		}
	}
	while(k--){
		scanf("%d%d%d%d",&w,&v,&x,&y);
		printf("%d\n",a[x][y]-a[w-1][y]-a[x][v-1]+a[w-1][v-1]);
	}
	return 0;
}
/**************************************************************
	Problem: 2061
	User: chenshuo
	Language: C++
	Result: Accepted
	Time:652 ms
	Memory:5992 kb
****************************************************************/