#include<bits/stdc++.h>

using namespace std;

const int maxn=5000;

int n,m,q,a[maxn][maxn],u[maxn],v[maxn],u2[maxn],v2[maxn],sum=0;

int main () {

//freopen("suslord.inp","r",stdin);

//freopen("chux.inp","r",stdin);

//freopen("chux.out","w",stdout);

ios_base::sync_with_stdio(false);

cin.tie(0);

cin >> n >> m >> q;

for(int i=1;i<=n;i++){

for(int j=1;j<=m;j++){

cin >> a[i][j];

}

}

for(int i=1;i<=q;i++){

sum=0;

cin >> u[i] >> v[i] >> u2[i] >> v2[i];

for(int j=u[i];j<=u2[i];j++){

for(int y=v[i];y<=v2[i];y++){

sum+=a[j][y];

}

}

cout << sum << endl;

}

return 0;

}

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