import java.util.*;

public class Main {
    static final int N = 1010;
    static int[][] a = new int[N][N], s = new int[N][N];
    static int n, m, q;

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        n = sc.nextInt(); m = sc.nextInt(); q = sc.nextInt();
        sc.nextLine();

        for (int i = 1; i <= n; i++) a[i] = toArr(sc.nextLine().split(" "));
        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) {
            String[] str = sc.nextLine().split(" ");
            int x1 = toInt(str[0]), y1 = toInt(str[1]), x2 = toInt(str[2]), y2 = toInt(str[3]);
            System.out.println(s[x2][y2] - s[x2][y1 - 1] - s[x1 - 1][y2] + s[x1 - 1][y1 - 1]);
        }
    }

    static int toInt(String str) {
        return Integer.parseInt(str);
    }

    static int[] toArr(String[] str) {
        int[] res = new int[N];
        for (int i = 1; i <= m; i++) res[i] = Integer.parseInt(str[i - 1]);
        return res;
    }
}