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.*;

class Main{

  public static boolean[][] cards=new boolean[4][13];
  static String a;
  static int b;
  
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
      int total = sc.nextInt();
      for (int i=0; i<total; i++) {
        a = sc.next();
        b = sc.nextInt();
        if (b == 0) {
          break;
          }
        cards[BoolChanger(a)][b-1] = true;
        }
      int j=0;
      while (j < 4) {
        for (int i=0; i<13; i++) {
          if (!cards[j][i]) {System.out.println(MarksChanger(j) + " " + (i+1));}
        }
          j++;
        } 
  }

  public static String MarksChanger(int k){
		switch(k){
		case 0:return "S";
		case 1:return "H";
		case 2:return "C";
		case 3:return "D";
		default:return null;
		}
  }
           
  public static int BoolChanger(String k){
		switch(k){
		case "S":return 0;
		case "H":return 1;
		case "C":return 2;
		case "D":return 3;
		default:return 0;
		}   
  }
}