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.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;

class Main{

	public static void main(String[] args) throws IOException{

			BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
			int num = Integer.parseInt(br.readLine());
			int rank = 13;
			ArrayList<Integer> spade = new ArrayList<Integer>();
			ArrayList<Integer> heart = new ArrayList<Integer>();
			ArrayList<Integer> club = new ArrayList<Integer>();
			ArrayList<Integer> diamond = new ArrayList<Integer>();

			for(int i = 0; i < num; i++){

				String[] token = br.readLine().split(" ");
				String type = token[0];
				int rank_num = Integer.parseInt(token[1]);

				if(type.equals("S")){
					spade.add(rank_num);
				}else if(type.equals("H")){
					heart.add(rank_num);
				}else if(type.equals("C")){
					club.add(rank_num);
				}else if(type.equals("D")){
					diamond.add(rank_num);
				}

			}

			for(int i = 1; i <= rank; i++){
				if(!spade.contains(i)){
					System.out.println("S " + i);
				}
			}

			for(int i = 1; i <= rank; i++){
				if(!heart.contains(i)){
					System.out.println("H " + i);
				}
			}

			for(int i = 1; i <=rank; i++){
				if(!club.contains(i)){
					System.out.println("C " + i);
				}
			}

			for(int i = 1; i <= rank; i++){
				if(!diamond.contains(i)){
					System.out.println("D " + i);
				}
			}

	}
}