Problem:
Finding Missing Cards

Taro is going to play a card game. However, now he has only n cards, even though there should be 52 cards (he has no Jokers).

The 52 cards include 13 ranks of each of the four suits: spade, heart, club and diamond.

Input

In the first line, the number of cards n (n ≤ 52) is given.

In the following n lines, data of the n cards are given. Each card is given by a pair of a character and an integer which represent its suit and rank respectively. A suit is represented by 'S', 'H', 'C' and 'D' for spades, hearts, clubs and diamonds respectively. A rank is represented by an integer from 1 to 13.

Output

Print the missing cards. The same as the input format, each card should be printed with a character and an integer separated by a space character in a line.
Arrange the missing cards in the following priorities:

Print cards of spades, hearts, clubs and diamonds in this order.

If the suits are equal, print cards with lower ranks first.

Sample Input

47
S 10
S 11
S 12
S 13
H 1
H 2
S 6
S 7
S 8
S 9
H 6
H 8
H 9
H 10
H 11
H 4
H 5
S 2
S 3
S 4
S 5
H 12
H 13
C 1
C 2
D 1
D 2
D 3
D 4
D 5
D 6
D 7
C 3
C 4
C 5
C 6
C 7
C 8
C 9
C 10
C 11
C 13
D 9
D 10
D 11
D 12
D 13

Sample Output

S 1
H 3
H 7
C 12
D 8

Note

      解説

Solution in JAVA (judge verdict: Accepted)

import java.util.Arrays;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        // suit S', 'H', 'C' and 'D'
        int[] s = new int[13];
        int[] h = new int[13];
        int[] c = new int[13];
        int[] d = new int[13];
        Arrays.fill(s, 0);
        Arrays.fill(h, 0);
        Arrays.fill(c, 0);
        Arrays.fill(d, 0);

        String[] suit;
        scanner.next();
        while (scanner.hasNext()) {
            suit = scanner.nextLine().split(" ");

            switch (suit[0]) {
            case "S":
                s[Integer.parseInt(suit[1]) - 1] = 1;
                break;
            case "H":
                h[Integer.parseInt(suit[1]) - 1] = 1;
                break;
            case "C":
                c[Integer.parseInt(suit[1]) - 1] = 1;
                break;
            case "D":
                d[Integer.parseInt(suit[1]) - 1] = 1;
                break;
            default:
                break;
            }

        }

        output(s, "S");
        output(h, "H");
        output(c, "C");
        output(d, "D");

        scanner.close();
    }

    private static void output(int[] values, String suit) {
        for (int i = 0; i < 13; i++) {
            if (values[i] == 0) {
                System.out.printf("%s %d%n", suit, i + 1);
            }
        }
    }

}