#include<iostream>
#include<vector>
using namespace std;
const int N = 1010;
int main(){
    int n,m,q;
    vector<vector<int>> s(N,vector<int>(N,0));
    cin>>n>>m>>q;
    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++)
            cin>>s[i][j];

     for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++)
            s[i][j]+=s[i-1][j]+s[i][j-1]-s[i-1][j-1];

    while(q--){
        int x1,y1,x2,y2;
        cin>>x1>>y1>>x2>>y2;

        cout<<(s[x2][y2]-s[x1-1][y2]-s[x2][y1-1]+s[x1-1][y1-1]);
        cout<<endl;
    }

    return 0;
}