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.InputStreamReader;

public class Main {
	public static void main(String[] args)throws Exception{
		InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
        
        	String input = br.readLine();
        	int[][] sum = new int[4][13];
        	for (int i = 0; i < Integer.parseInt(input); i++)
        	{
            	String[] card = br.readLine().split(" ");
            		int k = Integer.parseInt(card[1]) - 1;
            		if (card[0].equals("S"))
            			sum[0][k] = 1;
            		if (card[0].equals("H"))
            			sum[1][k] = 1;
            		if (card[0].equals("C"))
            			sum[2][k] = 1;
            		if (card[0].equals("D"))
            			sum[3][k] = 1;
        	}
        	for (int i = 0; i < 4; i++)
        	{
        		for (int j = 0; j < 13; j++)
        		{
        			if (sum[i][j] != 1)
        			{
        				if (i == 0)
        					System.out.println("S " + (j + 1));
        				if (i == 1)
        					System.out.println("H " + (j + 1));
        				if (i == 2)
        					System.out.println("C " + (j + 1));
        				if (i == 3)
        					System.out.println("D " + (j + 1));
        			}
        		}
        	}
        	
        	
	}

}