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) {

		int[][] card = new int[4][13];
		String[] card_symbol = { "S" , "H" , "C" , "D" };
		String in_symbol="";
		int in_num=0;

    	//初期化
    	for( int i = 0 ; i < card.length ; i++ ) {
    		for ( int j = 0 ; j < card[i].length ; j++ ) {
    			card[i][j] = 0;
    		}

    	}

    	Scanner sc= new Scanner( System.in );
    	int card_num = 0;
    	card_num = sc.nextInt();


    	for ( int i = 0 ; i < card_num ; i++ ) {
    		in_symbol = sc.next();
    		in_num = sc.nextInt();

        	switch( in_symbol ) {
        		case "S":
        			card[0][in_num-1] = 1;
        			break;
        		case "H":
        			card[1][in_num-1] = 1;
        			break;
        		case "C":
        			card[2][in_num-1] = 1;
        			break;
        		case "D":
        			card[3][in_num-1] = 1;
        			break;
        	}
    	}

    	for( int i = 0 ; i < card.length ; i++ ) {
    		for ( int j = 0 ; j < card[i].length ; j++ ) {
    			if( card[i][j] == 0 ) {
    				System.out.println( card_symbol[i] + " " + ( j + 1 ) );
    			}
    		}
    	}
    	sc.close();
	}
}