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.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            List<int> spadecardnum = new List<int>();
            List<int> heartcardnum = new List<int>();
            List<int> clubcardnum = new List<int>();
            List<int> diacardnum = new List<int>();

            //????????¶?????????????????????????????????????????°??????????????????
            int havecardnum =  int.Parse(Console.ReadLine());


            //????????¶??????????????????????????????????????????????????????add??????
            for(int i = 0; havecardnum > i; i++) 
            {
                string cardtype = Console.ReadLine();

               string[] havecard = cardtype.Split(' ');

                    //????????¶????????????????????????????????????????????¨???????????????add??????
                    switch (havecard[0])
                    {
                         case "S":
                                spadecardnum.Add(int.Parse(havecard[1]));
                                break;

                         case "H":
                                heartcardnum.Add(int.Parse(havecard[1]));
                                break;

                         case "C":
                                clubcardnum.Add(int.Parse(havecard[1]));
                                break;

                         case "D":
                                diacardnum.Add(int.Parse(havecard[1]));
                                break;
                    }
            }

            //??????
            LackOutPut(PrintData(spadecardnum), 1);
            LackOutPut(PrintData(heartcardnum), 2);
            LackOutPut(PrintData(clubcardnum), 3);
            LackOutPut(PrintData(diacardnum), 4);
        }

        /// <summary>
        /// ????¶???????????????????????????????
        /// </summary>
        /// <param name="list">????????¶?????????????????????????????????????????????</param>
        /// <returns></returns>
        private static List<int> PrintData(List<int> list)
        {
            List<int> result = new List<int>();
            for (int x = 1; x <= 13; x++)
            {
                if (list.Contains(x)) continue;
                result.Add(x);
            }
            return result;
        }

        /// <summary>
        /// ????¶?????????????????????????
        /// </summary>
        /// <param name="list">????¶??????????????????????????????????</param>
        /// <param name="handle">???????????????????????\????????????</param>
        private static void LackOutPut(List<int> list, int handle)
        {
            string printhandle = string.Empty;

            switch (handle)
                {
                    case 1:
                        printhandle = "S";
                        break;

                    case 2:
                        printhandle = "H";
                        break;

                    case 3:
                        printhandle = "C";
                        break;

                    case 4:
                        printhandle = "D";
                        break;
                }

            foreach(var result in list)
            {
                Console.WriteLine("{0} {1}", printhandle, result);
            }
        }
    }
}