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()
    {
        int x = int.Parse(Console.ReadLine()); //???????????????????????????????????°
        int[,] cards = new int[4, 13];

        for (int i= 0; i < x; i++)
        {
            string[] str = Console.ReadLine().Split(' ');
            string Class = str[0];
            int num = int.Parse(str[1]);
            int number = 0;
            switch (Class)
            {
                case "S": number = 0; break;
                case "H": number = 1; break;
                case "C": number = 2; break;
                case "D": number = 3; break;
            }

            cards[number, num-1] = 1;
        }

        //???????????§?????????????????\???

        int[,] CollectCards = new int[4, 13];

        for(int i= 0; i < cards.GetLength(0);i++)
        {
            for (int i2= 0; i2 < cards.GetLength(1);i2++)
            {
                if (CollectCards[i,i2] == cards[i,i2])
                {
                    
                    string OutClass = "";

                    switch(i)
                    {
                        case 0: OutClass = "S"; break;
                        case 1: OutClass = "H"; break;
                        case 2: OutClass = "C"; break;
                        case 3: OutClass = "D"; break;
                    }

                    Console.WriteLine("{0} {1}", OutClass, i2+1);
                }
            }
        }
    

    }


}