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 C# (judge verdict: Accepted)

using System;

namespace ReversingNumbers 
{
	class MainClass
	{
		static char[] suit = {'S', 'H', 'C', 'D'};
		public static void Main (string[] args)
		{
			int n = int.Parse (Console.ReadLine ());
			bool[,] data = new bool[4,13];
			for (int i = 0; i <data.GetLength (0); i++)
				for (int j = 0; j<data.GetLength (1); j++)
					data [i, j] = false;

			for (int i = 0; i < n; i++) {
				string[] tmp = Console.ReadLine ().Split (" ".ToCharArray ());
				int type = getSuitNum (tmp[0][0]);
				data[type, int.Parse(tmp[1])-1] = true;
			}

			for (int i = 0; i<data.GetLength (0); i++)
				for (int j = 0; j<data.GetLength (1); j++)
					if (!data [i, j]) {
						Console.WriteLine ("{0} {1}", suit [i], j+1);
					}
		}

		static int getSuitNum(char suitdata){
			for (int i = 0; i < suit.Length; i++)
				if (suitdata == suit [i])
					return i;

			return -1;
		}
	}
}