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.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	
	public static void main(String[] args) {
		try {
			boolean[][] cards = new boolean[4][13];
			
			for (int i = 0; i < 4; i++) {
				for (int j = 0; j < 13; j++) {
					cards[i][j] = false;
				}
			}

			BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
			String s = reader.readLine();
				
			int n = Integer.parseInt(s);
			String[] trump;
			int num = 0;
			for (int k = 0; k < n; k++) {
				String t = reader.readLine();
				trump = t.split(" ");
				num = Integer.parseInt(trump[1]);
				if ("S".equals(trump[0])) {
					cards[0][num - 1] = true;
				} else if ("H".equals(trump[0])) {
					cards[1][num - 1] = true;
				} else if ("C".equals(trump[0])) {
					cards[2][num - 1] = true;
				} else if ("D".equals(trump[0])) {
					cards[3][num - 1] = true;
				}
			}
			
			String[] picture = {"S", "H", "C", "D"};
			
			for (int l = 0; l < 4; l++) {
				for (int m = 0; m < 13; m++) {
					if (!cards[l][m]) {
						System.out.print(picture[l] + " ");
						System.out.println(m + 1);
					}
				}
			}
			
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

}