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: Wrong Answer)

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {

		// ?????????????????\????????????
		Scanner sc = new Scanner(System.in);

		// ??\?????°????????????????????°
		int input = sc.nextInt();

		// ???????????????
		int[][] card = new int[4][13];

		// ?????°????????????????????????????????°????????????
		String mark;
		int num;

		// ?????????????????°?????????
		int cnt;

		// ??????????????????????????????
		for (cnt = 0; cnt < input; cnt++) {

			mark = sc.next();
			num = sc.nextInt();

			switch (mark) {

			case "S":
				card[0][num - 1] = 1;
				break;

			case "H":
				card[1][num - 1] = 1;
				break;

			case "C":
				card[2][num - 1] = 1;
				break;

			case "D":
				card[3][num - 1] = 1;
				break;
			}

		}

		// ???????????????????????\????????????
		// ????¨?????????°???num???cnt???????????¨
		for (num = 0; num < 3; num++) {

			for (cnt = 0; cnt < 12; cnt++) {

				if (card[num][cnt] == 0) {

					switch (num) {

					case 0:
						System.out.println("S " + (cnt+1));
						break;

					case 1:
						System.out.println("H " + (cnt+1));
						break;

					case 2:
						System.out.println("C " + (cnt+1));
						break;

					case 3:
						System.out.println("D " + (cnt+1));
						break;
					}

				}

			}

		}
		sc.close();
	}

}