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.*;
import java.io.*;

class Card{
 char mark;
 int num;
 boolean have = false;
 static List<Card> allCards = new ArrayList<Card>();

 Card(char mark, int num){
	this.mark = mark;
	this.num = num;
	
}
}

public class Main{
public static void main(String[] args){

 char[] marks ={'S','H','C','D'};
 
	for(char mark: marks){
		for(int i = 0; i < 13; i++){
		 Card.allCards.add(new Card(mark, i+1));
		}
	}

	try{
	 BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
	 int n = Integer.parseInt(br.readLine());
	 	for(int a = 0; a < n; a++ ){
	  	 String[] str = br.readLine().split(" ");
		 	for(Card c : Card.allCards){
				if(c.mark != str[0].charAt(0)){
					continue;
				}
				if(c.num == Integer.parseInt(str[1])){
					c.have = true;
				}
			}
		}
	}catch(IOException e){
	 System.out.println(e);
	}

	for(Card c : Card.allCards){
		if(c.have == false){
		 System.out.println(c.mark + " " + c.num);
		}
	}
}
}