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 void main(String args[])
   { 
    answer();
   }
   static void answer()
   {
     Scanner sc = new Scanner(System.in);
     
     int n = sc.nextInt();
     
     boolean[][] card = new boolean[4][14];
     
     String[] suit = {"S","H","C","D"};
     //input
     for(int i = 0;i < n;i ++)
     {
       String s = sc.next();
       
       int num = sc.nextInt();
       
       int sb = 5;
       
       for(int j = 0;j < 4; j ++)
       {
         if(suit[j].equals(s)) sb = j;
       }
       if(sb == 5)
       {
         System.out.println("error!!");
         
         return;
       }
       card[sb][num] = true ;
     }//output 
     for(int i = 0; i < 4; i ++)
     {
       for(int j = 1; j < 14; j ++)
       {
         if(card[i][j] != true)
         {
           System.out.println(suit[i] + " " + j);
         }
       }
     }
   }
 }