#include<iostream>
#include<cstdio>
using namespace std;
const int N=1010;
int a[N][N], s[N][N];
int main()
{
int n, m, q;
scanf("%d%d%d",&n, &m, &q);
for(int i=1; i<=n; i++)
for(int j=1; j<=m; j++)
{
scanf("%d",&a[i][j]);
s[i][j]=s[i-1][j] + s[i][j-1] -s[i-1][j-1] + a[i][j];
}
int x1,y1,x2,y2,res;
while(q--)
{
scanf("%d%d%d%d",&x1,&y1,&x2,&y2);
res=s[x2][y2] - s[x2][y1-1] - s[x1-1][y2] + s[x1-1][y1-1];
printf("%d\n", res);
}
return 0;
}