#include<bits/stdc++.h>
using namespace std;
const int N=200010;
int g[1010][1010],S[1010][1010],n,m,q;
int main(){
scanf("%d%d%d",&n,&m,&q);
for(int i=1;i<=n;++i)
{
for(int j=1;j<=m;++j)
{
scanf("%d",&g[i][j]);
S[i][j]=S[i-1][j]+S[i][j-1]-S[i-1][j-1]+g[i][j];
}
}
while (q--)
{
int x1,y1,x2,y2;
scanf("%d%d%d%d",&x1,&y1,&x2,&y2);
printf("%d\n",S[x2][y2]-S[x1-1][y2]-S[x2][y1-1]+S[x1-1][y1-1]);
}
return 0;
}