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;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

class Main {

	public static void main(String[] args) {
		InputStreamReader isr = new InputStreamReader(System.in);
		BufferedReader br = new BufferedReader(isr);
		try {
			Map<String, List<Integer>> map = new LinkedHashMap<String, List<Integer>>();
			List<Integer> list = new ArrayList<Integer>();
			map.put("S", new ArrayList<Integer>());
			map.put("H", new ArrayList<Integer>());
			map.put("C", new ArrayList<Integer>());
			map.put("D", new ArrayList<Integer>());
			String input = br.readLine();
			int sheet = Integer.parseInt(input);
			int i;
			for (i = 0; i < sheet; i++) {
				String[] inputList = br.readLine().split(" ");
				list = map.get(inputList[0]);
				list.add(Integer.parseInt(inputList[1]));
				map.put(inputList[0], list);
			}

			for (Map.Entry<String, List<Integer>> e : map.entrySet()) {
				list = e.getValue();
				for (i = 1; i <= 13; i++) {
					if (!list.contains(i)) {
						System.out.println(e.getKey() + " " + i);
					}
				}
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}