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;

public class Program
{
	public static void Main(string[] args)
	{
		string line = Console.ReadLine();
		int numOfCards = int.Parse(line);
		bool [] cards = new bool[53];
		for (int i = 0; i <= 52; i++)
		{
			cards[i] = true;
		}
		for (int i = 0; i < numOfCards; i++)
		{
			line = Console.ReadLine();
			string [] markAndNum=line.Split(' ');
			int num = int.Parse(markAndNum[1]);
			int markNum = 0;
			if (markAndNum[0] == "S")
			{
				markNum = 0;
			} else if (markAndNum[0] == "H")
			{
				markNum = 1;
			} else if (markAndNum[0] == "C")
			{
				markNum = 2;
			} else if (markAndNum[0] == "D")
			{
				markNum = 3;
			}
			int cardNum = markNum * 13 + num;

			cards[cardNum] = false;
		}

		for (int i = 1; i < cards.Length; i++)
		{
			if (cards[i] == true)
			{
				if (i <= 13 )
				{
					Console.WriteLine("S " + i);
				}
				else if( i <= 26)
				{
					Console.WriteLine("H " + (i-13));
				}
				else if (i <= 39)
				{
					Console.WriteLine("C " + (i - 26));
				}
				else 
				{
					Console.WriteLine("D " + (i - 39));
				}
					
			}
		}


		
	}


}




public class StreamScanner
{
	private readonly char[] _c = { ' ' };
	private int _index = -1;
	private string[] _input = new string[0];
	private readonly System.IO.StreamReader _sr = new System.IO.StreamReader(Console.OpenStandardInput());

	public T Next<T>()
	{
		if (_index == _input.Length - 1)
		{
			_index = -1;
			while (true)
			{
				string rl = _sr.ReadLine();
				if (rl == null)
				{
					if (typeof(T).IsClass) return default(T);
					return (T)typeof(T).GetField("MinValue").GetValue(null);
				}
				if (rl != "")
				{
					_input = rl.Split(_c, StringSplitOptions.RemoveEmptyEntries);
					break;
				}
			}
		}
		return (T)Convert.ChangeType(_input[++_index], typeof(T), System.Globalization.CultureInfo.InvariantCulture);
	}

	public T[] Next<T>(int x)
	{
		var ret = new T[x];
		for (var i = 0; i < x; ++i) ret[i] = Next<T>();
		return ret;
	}

	public T[][] Next<T>(int x, int y)
	{
		var ret = new T[y][];
		for (var i = 0; i < y; ++i) ret[i] = Next<T>(x);
		return ret;
	}
}