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;
 
class Main {
    public static void main(String[] args) {
 
        Scanner scan = new Scanner (System.in);
 
        boolean [][] cards = new boolean [4][13] ;
        //自分の手持ちカード枚数
        int myCards = scan.nextInt();
            //手持ちカード枚数まで入力する
        for(int i = 0 ; i < myCards ; i++){
 
        //マークと数字を入れる
        String mark = scan.next();   int number = scan.nextInt();
 
        //該当数るマークと数字の配列にtrueを入れる
        if(mark.equals("S")) cards [0][number-1] = true;
        else if(mark.equals("H")) cards [1][number-1] = true;
        else if(mark.equals("C")) cards [2][number-1] = true;
        else cards [3][number-1] = true;
 
        }
 
 
       //cards[i][j]==falseだったら、出力
        for(int i = 0 ; i < 4 ; i++){
            for(int j= 0 ; j < 13 ; 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 System.out.println("D "+ (j+1));
                }
            }
        }
 
    }
}