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;
import java.util.ArrayList;

public class Main {
	public static void main(String[] args)throws IOException
	{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int num = Integer.parseInt(br.readLine());
//		???????????????????????°???????????????
		ArrayList<Integer> Scd = new ArrayList<Integer>();
		ArrayList<Integer> Hcd = new ArrayList<Integer>();
		ArrayList<Integer> Ccd = new ArrayList<Integer>();
		ArrayList<Integer> Dcd = new ArrayList<Integer>();
//		S,H,C,D????????????????????¨???

		String[] buf = new String[2];
		int tmp = 0;
		for(int i=0; i<num; i++)
		{
			buf = br.readLine().split(" ");
			tmp = Integer.parseInt(buf[1]);
//			????????\?????????????????????????????????????´?
			switch(buf[0])
			{
			case "S":
				Scd.add(tmp);
				break;
			case "H":
				Hcd.add(tmp);
				break;
			case "C":
				Ccd.add(tmp);
				break;
			case "D":
				Dcd.add(tmp);
				break;
			}
		}

		for(int i=1; i<=13; i++)
		{
			if(Scd.indexOf(i)==-1)
			{
				System.out.println("S " + i);
			}
		}
//		???????????????????????????????????????????????§?????°???????´¢????????????
//		?????¨??????????????°???????????°??¨????????????
		for(int i=1; i<=13; i++)
		{
			if(Hcd.indexOf(i)==-1)
			{
				System.out.println("H " + i);
			}
		}
		for(int i=1; i<=13; i++)
		{
			if(Ccd.indexOf(i)==-1)
			{
				System.out.println("C " + i);
			}
		}
		for(int i=1; i<=13; i++)
		{
			if(Dcd.indexOf(i)==-1)
			{
				System.out.println("D " + i);
			}
		}
	}
}