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 [][] cards = new boolean[4][13];
		String mark = new String();
		int n = sc.nextInt();
		
		for(int i=0; i<n; i++){
			mark = sc.next();
			if(mark.equals("S")){
				cards[0][sc.nextInt()-1] = true; 
			} else if(mark.equals("H")){
				cards[1][sc.nextInt()-1] = true;
			} else if(mark.equals("C")){
				cards[2][sc.nextInt()-1] = true;
			} else if(mark.equals("D")) {
				cards[3][sc.nextInt()-1] = true;
			}
		}
		
		for(int i=0; i<cards.length; i++){
			for(int j=0; j<cards[0].length; j++){
				if(!cards[i][j]){
					if(i==0){
						System.out.println("S "+(j+1));
					}
					else if(i==1){
						System.out.println("H "+(j+1));
					}
					else if(i==2){
						System.out.println("C "+(j+1));
					}
					else if(i==3){
						System.out.println("D "+(j+1));
					}
				}
			}
		}
	}
}