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;

class Program
{
    static void Main(string[] args)
    {
        int[,] array = new int[4, 13];
        int n;
        int num = 0;
        char cha;

        for (int i = 0; i < 4; i++)
        {
            for (int j = 0; j < 13; j++)
            {
                array[i, j] = 0;
            }
        }

        string str1 = Console.ReadLine();
        n = int.Parse(str1);

        for (int h = 0; h < n; h++)
        {
            string[] str2 = Console.ReadLine().Split(' ');
            cha = char.Parse(str2[0]);
            num = int.Parse(str2[1]);

            switch (cha)
            {
                case 'S':
                    array[0, num - 1] = 1;
                    break;
                case 'H':
                    array[1, num - 1] = 1;
                    break;
                case 'C':
                    array[2, num - 1] = 1;
                    break;
                case 'D':
                    array[3, num - 1] = 1;
                    break;
            }
        }

        for (int i = 0; i < 4; i++)
        {
            for (int j = 0; j < 13; j++)
            {
                if (array[i, j] == 0)
                {
                    if (i == 0)
                    {
                        Console.WriteLine("S " + (j + 1));
                    }
                    if (i == 1)
                    {
                        Console.WriteLine("H " + (j + 1));
                    }
                    if (i == 2)
                    {
                        Console.WriteLine("C " + (j + 1));
                    }
                    if (i == 3)
                    {
                        Console.WriteLine("D " + (j + 1));
                    }
                }
            }
        }
    }
}