import java.util.Scanner;

public class Main
{

    private static int N=1010;
    private static int[][] a=new int[N][N];
    private static int[][] s=new int[N][N];

    public static void main(String[] args)
    {
        Scanner scan=new Scanner(System.in);

        int n=scan.nextInt();
        int m=scan.nextInt();
        int q=scan.nextInt();
        for(int i=1;i<=n;i++)
            for(int j=1;j<=m;j++)
                a[i][j]=scan.nextInt();

        //初始化前缀和
        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(q--!=0)
        {
            int x1=scan.nextInt();
            int y1=scan.nextInt();
            int x2=scan.nextInt();
            int y2=scan.nextInt();
            int t=s[x2][y2]-s[x1-1][y2]-s[x2][y1-1]+s[x1-1][y1-1];
            System.out.println(t);
        }


        scan.close();

    }

}