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 sc = new Scanner(System.in);
		boolean[][] trumps = new boolean[4][13];
		int n = sc.nextInt();
		String character;
		int number;
		int trumpsIndex = 0;
		for (int i = 0; i < n; i++) {
			character = sc.next();
			number = sc.nextInt() - 1;
			switch (character) {
			case "S":
				trumpsIndex = 0;
				break;
			case "H":
				trumpsIndex = 1;
				break;
			case "C":
				trumpsIndex = 2;
				break;
			case "D":
				trumpsIndex = 3;
				break;
			}
			trumps[trumpsIndex][number] = true;
		}
		character = "";
		for (int i = 0; i < trumps.length; i++) {
			for (int j = 0; j < trumps[i].length; j++) {
				if (trumps[i][j] == false) {
					switch (i) {
					case 0:
						character = "S";
						break;
					case 1:
						character = "H";
						break;
					case 2:
						character = "C";
						break;
					case 3:
						character = "D";
						break;
					}
					System.out.println(character + " " + (j + 1));
				}
			}
		}
		sc.close();
	}
}