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 Cards
{
    public 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 < 13; i++)
        {
            S[i] = 0;
            H[i] = 0;
            C[i] = 0;
            D[i] = 0;
        }

        for (int i=0;i< n; i++)
        {
            string[] s = Console.ReadLine().Split();

            string mark = s[0];
            int number = int.Parse(s[1]);

            if(mark == "S")
            {
                S[number-1] = number;
            }else if (mark == "H")
            {
                H[number-1] = number;
            }else if (mark == "C")
            {
                C[number-1] = number;
            }else if(mark == "D")
            {
                D[number-1] = number;
            }
        }

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