#include<bits/stdc++.h>
using namespace std;
int n,m,k,a[1005][1005],qian[1005][1005],lx,ly,rx,ry; 

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]);
			qian[i][j]=a[i][j]+qian[i-1][j]+qian[i][j-1]-qian[i-1][j-1];
		}
	while(k--){
		cin>>lx>>ly>>rx>>ry;
		printf("%d\n",qian[rx][ry]-qian[lx-1][ry]-qian[rx][ly-1]+qian[lx-1][ly-1]);
	}
    return 0;
}
/**************************************************************
	Problem: 2061
	User: yanye
	Language: C++
	Result: Time Limit Exceed
****************************************************************/