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;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;

class Program
{
	static void Main(string[] args)
	{

		int[] S = new int[13];
		int[] H = new int[13];
		int[] C = new int[13];
		int[] D = new int[13];


		int N = int.Parse(Console.ReadLine());

		for (int i = 0; i < N; i++)
		{
			string[] s = Console.ReadLine().Split(' ');
            char[] s1 = s[0].ToCharArray();
			int s2 = int.Parse(s[1]);

			switch (s1[0])
			{
				case 'S':

                    S[s2-1] = 1;
					break;
				case 'H':
					H[s2- 1] = 1;
					break;
				case 'C':
					C[s2- 1] = 1;
					break;
				case 'D':
					D[s2- 1] = 1;
					break;
				default:
					break;

			}
		}

		for (int i = 0; i < 13; i++)
		{
			if (S[i] != 1)
			{
				Console.WriteLine("S {0}", i+1);
			}
		}

		for (int i = 0; i < 13; i++)
		{
			if (H[i] != 1)
			{
				Console.WriteLine("H {0}", i+ 1);
			}
		}

		for (int i = 0; i < 13; i++)
		{
			if (C[i] != 1)
			{
				Console.WriteLine("C {0}", i+ 1);
			}
		}

		for (int i = 0; i < 13; i++)
		{
			if (D[i] != 1)
			{
				Console.WriteLine("D {0}", i+ 1);
			}
		}



		return;
		//Console.WriteLine("");

	}
}