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.*;

class Main {
	public static void main(String[] args){
		try{ 
			BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
			String buf = br.readLine();
			
			int n = Integer.parseInt(buf);
			int [][] a = new int [4][13];
			
			for(int i = 0;i < n;i++){
				buf = br.readLine();
				String[] line = buf.split(" ");
				String mark = line[0]; 
				int s = Integer.parseInt(line[1]);
				if(mark.equals("S")){
					a[0][s-1] = 1;
				} else if (mark.equals("H")){
					a[1][s-1] = 1;
				} else if (mark.equals("C")){
					a[2][s-1] = 1;
				} else if (mark.equals("D")){
					a[3][s-1] = 1;
				}
			}
			
			
			for(int i = 0; i< 4;i++){
				for(int j = 0;j<13;j++){
					if(a[i][j] != 1){
						if( i == 0){
							System.out.print("S");
							System.out.println(" "+(j+1));
						}
						if( i == 1){
							System.out.print("H");
							System.out.println(" "+(j+1));
						}
						if( i == 2){
							System.out.print("C");
							System.out.println(" "+(j+1));
						}
						if( i == 3){
							System.out.print("D");
							System.out.println(" "+(j+1));
						}
					}
				}
			}
		} catch(Exception e){
		}
	}
}