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;

class Program
    {
        static void Main(string[] args)
        {
            //?????°??????
            string[] card; //1???????????????
            var card_list = new List<int>();//???????????????
            var nocard_list = new List<int>();//???????????????
            int card_id = 0, card_rank = 0, x = 0, get_count =0 ;
            int count = int.Parse(Console.ReadLine());//??????????????°

            //?????¨?????????????????????
            for (int num = 0; num < count; num++)
            {
                card = Console.ReadLine().Split();
                card_rank = int.Parse(card[1]);
                card_id = GetId(card[0],card_rank);
                card_list.Add(card_id);
            }
            //????????????????????????????????????
            card_list.Sort();
            for (int num = 1; num <= 52; num++)
            {               
                if (card_list[x] != num)
                {
                    nocard_list.Add(num);
                }
                else
                {
                    get_count++;
                    if (get_count<count) {
                        x++;
                    }
                }
            }

            foreach (int i in nocard_list)
            {
                card = GetCard(i);
                Console.WriteLine("{0} {1}",card[0],card[1]);
            }
            Console.Read();
        }

        public static int GetId(string mark, int no)
        {
            int id = 0;
            switch (mark)
            {
                case "S":
                    break;
                case "H":
                    id += 13;
                    break;
                case "C":
                    id += 26;
                    break;
                case "D":
                    id += 39;
                    break;
            }
            id += no;
            return id;
        }

        public static string[] GetCard(int card_id)
        {
            string[] card = new string[2];
            if (card_id <= 13)
            {
                card[0] = "S";
                card[1] = card_id.ToString();
            }
            if (card_id > 13 && card_id<=26)
            {
                card[0] = "H";
                card[1] = (card_id - 13).ToString();
            }
            if (card_id > 26 && card_id <= 39)
            {
                card[0] = "C";
                card[1] = (card_id - 26).ToString();
            }
            if (card_id > 39)
            {
                card[0] = "D";
                card[1] = (card_id - 39).ToString();
            }

            return card;
        }
    }