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.util.stream.*;
class Main {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int n;
        n = input.nextInt();
        boolean[] cards = new boolean[52];
        HashMap<String,Integer> mark = new HashMap<String,Integer>();
        mark.put("S",0);
        mark.put("H",1);
        mark.put("C",2);
        mark.put("D",3);
        HashMap<Integer,String> revmark = new HashMap<Integer,String>();
        revmark.put(0,"S");
        revmark.put(1,"H");
        revmark.put(2,"C");
        revmark.put(3,"D");
        for (int i = 0; i < n; i++){
            String mk = input.next();
            int num = input.nextInt();
            cards[mark.get(mk)*13 + num - 1] = true;
        }
        for (int i = 0; i < 52; i++){
            if (!cards[i]){
                int mk = i/13;
                int num = i%13 + 1;
                System.out.printf("%s %d\n",revmark.get(mk),num);
            }
        }
    }
}