#include<iostream>
using namespace std;

const int N=1010;
int m,n,a[N][N],s[N][N],r;

int main(){
    cin>>n>>m>>r;
    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++){
            scanf("%d",&a[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]+a[i][j];
        }
    while(r--){
        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]<<endl;
    }
    return 0;
}