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 JAVA (judge verdict: Accepted)

import java.util.*;

public class Main{
  public static final int N = 13;
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    boolean[] cards = new boolean[N*4+1];
    int n = sc.nextInt(),num,i;
    String s;
    for(i = 1;i <= N*4;i++)cards[i] = false;
    for(i = 0;i < n;i++){
      s = sc.next();
      num = sc.nextInt();
      if(s.equals("S"))cards[num] = true;
      if(s.equals("H"))cards[N+num] = true;
      if(s.equals("C"))cards[N*2+num] = true;
      if(s.equals("D"))cards[N*3+num] = true;
    }
    for(i = 1;i <= N;i++){
      if(!cards[i])System.out.println("S " + i);
    }
    for(;i <= N*2;i++){
      if(!cards[i])System.out.println("H " + (i-N));
    }
    for(;i <= N*3;i++){
      if(!cards[i])System.out.println("C " + (i-N*2));
    }
    for(;i <= N*4;i++){
      if(!cards[i])System.out.println("D " + (i-N*3));
    }
    sc.close();
  }
}