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.Scanner;

public class Main{

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

		boolean[] spade = new boolean[13];
		boolean[] diamond = new boolean[13];
		boolean[] club = new boolean[13];
		boolean[] heart = new boolean[13];

		int n = stdin.nextInt();

		for (int i = 0; i < n; ++i) {
			String markChar = stdin.next();
			int number = stdin.nextInt();
			boolean[] mark = null;
			if ("S".equals(markChar)) {
				mark = spade;
			} else if ("H".equals(markChar)) {
				mark = heart;
			} else if ("C".equals(markChar)) {
				mark = club;
			} else if ("D".equals(markChar)) {
				mark = diamond;
			}
			mark[number - 1] = true;
		}

		for (int i = 0; i < spade.length; ++i) {
			if (!spade[i]) {
				System.out.println("S " + (i + 1));
			}
		}
		for (int i = 0; i < heart.length; ++i) {
			if (!heart[i]) {
				System.out.println("H " + (i + 1));
			}
		}
		for (int i = 0; i < club.length; ++i) {
			if (!club[i]) {
				System.out.println("C " + (i + 1));
			}
		}
		for (int i = 0; i < diamond.length; ++i) {
			if (!diamond[i]) {
				System.out.println("D " + (i + 1));
			}
		}
	}
}