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 ConsoleApplication20
{
    class Program
    {
        static void Main(string[] args)
        {
            int[,] Total = new int[4, 13];
            for (int j = 0; j < 4; j++)
            {
                for (int i = 0; i < 13; i++)
                {
                    Total[j, i] = 0;
                }

            }
            String N = Console.ReadLine();
            int n = int.Parse(N);
            for (int x = 0; x < n; x++)
            {
                String[] card = Console.ReadLine().Split(' ');
                int i = int.Parse(card[1]);
                i = i - 1;
                String S = "S";
                String H = "H";
                String C = "C";
                String D = "D";
                if (card[0].Equals(S))
                {
                    Total[0, i] = 20;
                }
                else if (card[0].Equals(H))
                {
                    Total[1, i] = 20;
                }
                else if (card[0].Equals(C))
                {
                    Total[2, i] = 20;
                }
                else if (card[0].Equals(D))
                {
                    Total[3, i] = 20;
                }
            }
            for ( int j = 0; j < 4; j++ )
            {
                for ( int i = 0; i < 13; i++ )
                {
                    int ans = Total[j, i];
                    if (ans == 0)
                    {
                        if (j == 0)
                        {
                            Console.WriteLine("S" + " " + (i + 1));
                        }
                        else if (j == 1)
                        {
                            Console.WriteLine("H" + " " + (i + 1));
                        }
                        else if (j == 2)
                        {
                            Console.WriteLine("C" + " " + (i + 1));
                        }
                        else if (j == 3)
                        {
                            Console.WriteLine("D" + " " + (i + 1));
                        }
                    }
                    
                }
            }
            
        }
    }
}