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.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
public class Main{
	public static void main(String[] args) throws IOException{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		StringBuilder sb = new StringBuilder();
		String lineN = br.readLine();
    int n = Integer.parseInt(lineN);
		int[][] c = new int[4][13];
    for(int i = 0; i < n; i++){
      String[] lineA = br.readLine().split(" ");
      int num = Integer.parseInt(lineA[1]);
      if( lineA[0].equals("S") ) c[0][--num] =1;
      if( lineA[0].equals("H") ) c[1][--num] =1;
      if( lineA[0].equals("C") ) c[2][--num] =1;
      if( lineA[0].equals("D") ) c[3][--num] =1;
    }
		for(int i = 0; i < 4; i++){
			for(int j = 0; j < 13; j++){
				if( c[i][j] == 0 ){
					switch(i){
						case 0:
							sb.append("S ");
							break;
						case 1:
							sb.append("H ");
							break;
						case 2:
							sb.append("C ");
							break;
						case 3:
							sb.append("D ");
							break;
					}
					sb.append(j+1).append("\n");
				}
			}
		}
    System.out.print(sb);
	}
}