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;

class Program
{
    static void Main()
    {
        int n = int.Parse(Console.ReadLine());

        int[] s = new int[13];
        int[] h = new int[13];
        int[] c = new int[13];
        int[] d = new int[13];
        for(int i = 0;i < s.Length; i++)
        {
            s[i] = i + 1;
            h[i] = i + 1;
            c[i] = i + 1;
            d[i] = i + 1;
        }

        for(int i = 0; i < n; i++)
        {
            string[] str = Console.ReadLine().Split(' ');
            int x = int.Parse(str[1]);
            if (str[0] == "s")
            {
                s[x - 1] = 0;
            }else if (str[0] == "h")
            {
                h[x - 1] = 0;
            }else if(str[0] == "c")
            {
                c[x - 1] = 0;
            }else
            {
                d[x - 1] = 0;
            }
        }

        for(int i = 0;i < s.Length; i++)
        {
            if(s[i] != 0)
            {
                Console.WriteLine("S " + s[i]);
            }
        }
        for (int i = 0; i < h.Length; i++)
        {
            if (h[i] != 0)
            {
                Console.WriteLine("H " + h[i]);
            }
        }
        for (int i = 0; i < c.Length; i++)
        {
            if (c[i] != 0)
            {
                Console.WriteLine("C " + c[i]);
            }
        }
        for (int i = 0; i < d.Length; i++)
        {
            if (d[i] != 0)
            {
                Console.WriteLine("D " + d[i]);
            }
        }


    }
}