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.*;

public class Main {
    public static void main(String args[]) {
        int[][] cards = new int[4][13];

        for (int x = 0; x < 4; x++) {
            for (int y = 0; y < 13; y++) {
                cards[x][y] = 1;
            }
        }

        Scanner scn = new Scanner(System.in);
        int n = scn.nextInt();


        for (int i = 0; i < n; i++) {
            String mark = scn.next();
            int num = scn.nextInt();
            int m;

            switch (mark) {
                case "S":
                    m = 0;
                    break;
                case "H":
                    m = 1;
                    break;
                case "C":
                    m = 2;
                    break;
                default:
                    m = 3;
                    break;
            }

            cards[m][num - 1] = 0;

        }

        for (int l = 0; l < 4; l++) {
            for (int j = 0; j < 13; j++) {
                if (cards[l][j] == 1) {
                    String mark2;
                    switch (l) {
                        case 0:
                            mark2 = "S";
                            break;
                        case 1:
                            mark2 = "H";
                            break;
                        case 2:
                            mark2 = "C";
                            break;
                        default:
                            mark2 = "D";
                            break;
                    }
                    System.out.println(mark2 + " " + (j + 1));
                }
            }

        }

        scn.close();

    }


}