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 C# (judge verdict: Accepted)

using System;

public class Test
{
	static public void Main( )
	{
		const int S = 0;
		const int H = 1;
		const int C = 2;
		const int D = 3;		
		int n = int.Parse( Console.ReadLine() );
		int[,] shcd = new int[4, 13];
		for( int i=0; i<n; i++ ) {
			string[] strs = Console.ReadLine().Split( ' ' );
			int val = 0;
			switch( strs[0] ) {
				case "S":val = S;
					break;
				case "H":val = H;
					break;
				case "C":val = C;
					break;
				case "D":val = D;
					break;
			}
			shcd[ val, int.Parse( strs[1] )-1 ] = 1;
		}
		for( int i=0; i<4; i++ ) {
			for( int j=0; j<13; j++ ) {
				if( S == i && 0 == shcd[S,j] ) {
					Console.WriteLine( "S "+(j+1) );
				} else if( H == i && 0 == shcd[H,j] ) {
					Console.WriteLine( "H "+(j+1) );
				} else if( C == i && 0 == shcd[C,j] ) {
					Console.WriteLine( "C "+(j+1) );
				} else if( D == i && 0 == shcd[D,j] ) {
					Console.WriteLine( "D "+(j+1) );
				}
			}
		}
	}
}