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;
using System.Collections.Generic;
using System.Linq;

public class Hello{
    public static void Main(){
        var mark = new string[]{"S","H","C","D"};
        var nums = new string[]{"1","2","3","4","5","6","7",
                             "8","9","10","11","12","13"};
        var flag = new bool[52];
        for(var f = 0;f < 52;f++){
            flag[f] = false;
        }
        
        var n = int.Parse(Console.ReadLine());
        
        for(var i = 0;i < n;i++){
            var line = Console.ReadLine().Split(' ');
            var index = Array.IndexOf(mark,line[0]) * 13 + Array.IndexOf(nums,line[1]);
            flag[index] = true;
        }
        for(var i = 0;i < 52;i++){
            if(!flag[i]){
                Console.WriteLine($"{mark[i / 13]} {nums[i % 13]}");
            }
        }
    }
}