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: Wrong Answer)

using System;

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

            var card = new bool[4, 13];

            for (var i = 0; i < 4;i++ )
            {
                for(var r=0;r<13;r++)
                {
                    card[i, r] = false;
                }
            }

            var read = Console.ReadLine();
            int num = int.Parse(read);


                for (int i = 0; i < num; i++)
                {
                    read = Console.ReadLine();
                    var temp_string = read.Split(' ');

                    switch (temp_string[0])
                    {
                        case "S":
                            {
                                card[0, int.Parse(temp_string[1])-1] = true;
                                break;
                            }
                        case "H":
                            {
                                card[1, int.Parse(temp_string[1])-1] = true;
                                break;
                            }
                        case"C":
                            {
                                card[2, int.Parse(temp_string[1])-1] = true;
                                break;
                            }
                        case"D":
                            {
                                card[3, int.Parse(temp_string[1])-1] = true;
                                break;
                            }
                    }

                }

                for (var i = 0; i < 4; i++)
                {
                    for (var r = 0; r < 13; r++)
                    {
                        if(!(card[i,r]))
                        {
                            switch(i)
                            {
                                case 0:
                                    {
                                        Console.WriteLine("S" + r);
                                        break;
                                    }

                                case 1:
                                    {
                                        Console.WriteLine("H" + r);
                                        break;
                                    }

                                case 2:
                                    {
                                        Console.WriteLine("C" + r);
                                        break;
                                    }

                                case 3:
                                    {
                                        Console.WriteLine("D" + r);
                                        break;
                                    }


                            }
                        }
                    }
                }
            

            Console.WriteLine();
        }
    }
}