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){
        boolean[][] card = new boolean[4][13];
        Scanner scanner = new Scanner(System.in);

        int max = scanner.nextInt();
        String m;
        int num;
        for(int i = 0; i < max; i++){
            m = scanner.next();
            num = scanner.nextInt();

            if(m.equals("S")){
                card[0][num-1] = true;
            }else if(m.equals("H")){
                card[1][num-1] = true;
            }else if(m.equals("C")){
                card[2][num-1] = true;
            }else if(m.equals("D")){
                card[3][num-1] = true;
            }
        }

        for(int i = 0; i < card.length; i++){
            for(int ii = 0; ii < card[i].length; ii++){
                if(!card[i][ii]){
                    switch (i){
                        case 0:
                            System.out.println("S " + (ii+1));
                            break;
                        case 1:
                            System.out.println("H " + (ii+1));
                            break;
                        case 2:
                            System.out.println("C " + (ii+1));
                            break;
                        case 3:
                            System.out.println("D " + (ii+1));
                            break;
                    }
                }
            }
        }
        scanner.close();
    }
}