#include <bits/stdc++.h>
using namespace std;
int n,m,q;
int s[1005][1005];
int main()
{
	cin>>n>>m>>q;
	for(int i=1;i<=n;i++)
	{
		for(int j=1;j<=m;j++)
        {
            scanf(" %d",&s[i][j]);
            s[i][j]=s[i-1][j]+s[i][j-1]-s[i-1][j-1]+s[i][j];
        }  
	}
    int x1,yi,x2,y2;
	for(int i=1;i<=q;i++)
	{
		scanf(" %d %d %d %d",&x1,&yi,&x2,&y2);
        printf("%d\n",s[x2][y2]-s[x1-1][y2]-s[x2][yi-1]+s[x1-1][yi-1]);
	}
	return 0;
}