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;

public class Card
{
  public char mark;
  public int value;
  public bool judge;
  public Card(char mark,int value,bool judge){
    this.mark = mark;
    this.value = value;
    this.judge = judge;
  }
}

public class Program
{
  public static void Main(string[] args)
  {
    Card[] SHCD = new Card[52];
    for(int i = 0;i < 52;i++)
    {
      if(i < 13) SHCD[i] = new Card('S',i + 1,false);
      else if(i < 26) SHCD[i] = new Card('H',(i + 1)-13,false);
      else if(i < 39) SHCD[i] = new Card('C',(i + 1)-26,false);
      else SHCD[i] = new Card('D',(i + 1)-39,false);
    }
    int count = int.Parse(Console.ReadLine());
    int j = 0;
    while(j < count)
    {
      string[] read = Console.ReadLine().Split(' ');
      if(read == null) break;
      char tmp_mark = char.Parse(read[0]);
      int tmp_value = int.Parse(read[1]);
      for(int i = 0;i < 52;i++)
      {
        if(tmp_mark == SHCD[i].mark && tmp_value == SHCD[i].value){
          SHCD[i].judge = true;
        }
      }
      j++;
    }
    for(int i = 0;i < 52;i++)
    {
      if(!SHCD[i].judge) Console.WriteLine(SHCD[i].mark + " " + SHCD[i].value);
    }
  }
}