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 MyCards
{
    int n;
    bool[,] cards;
    //?????£????????????????????????????????????
    public void CheckCards()
    {
        for(int i =0;i<4;i++)
        {
            for(int j =0;j<13;j++)
            {
                if(cards[i,j]==false)
                {
                    if(i==0)
                        Console.WriteLine("S {0}",j+1);
                    else if(i==1)
                        Console.WriteLine("H {0}",j+1);
                    else if(i==2)
                        Console.WriteLine("C {0}",j+1);
                    else if(i==3)
                        Console.WriteLine("D {0}",j+1);
                }
            }
        }
    }
    //?????£?????????????????????true?????????
    public void HaveCards()
    {
        for (int i = 0; i < n; i++)
        {
            //cards[0,]=S,[1,]=H,[2,]=C,[3,]=D
            string str = Console.ReadLine();
            string[] s = str.Split(' ');
            int num = int.Parse(s[1]);
            if (s[0] == "S")
                cards[0, num - 1] = true;
            else if (s[0] == "H")
                cards[1, num - 1] = true;
            else if (s[0] == "C")
                cards[2, num - 1] = true;
            else if (s[0] == "D")
                cards[3, num - 1] = true;

        }
    }
    //??¨??????false?????????
    public MyCards()
    {
        cards = new bool[4, 13];
        for (int i = 0; i < 4; i++)
        {
            for (int j = 0; j < 13; j++)
            {
                cards[i, j] = false;
            }
        }
        n = int.Parse(Console.ReadLine());
        HaveCards();
    }
}

class Program
{
    static void Main()
    {
        MyCards mc = new MyCards();
        mc.CheckCards();
    }
}