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 ConsoleApplication7
{
    class Program
    {
        static void Main(string[] args)
        {
            // ????????????????????¶????????????????¬??????????
            int[,] card = new int[4, 13];

            // ??\?????????????????????????????°?????????
            int inputNum = int.Parse(Console.ReadLine());

            // ?????????????????°????????°?????????
            for (int i = 0; i < inputNum; i++)
            {
                // ??????????????±?????????
                string[] ss = Console.ReadLine().Split(' ');

                // ?????????????¨???????????????????????????????????¨??????????
                int markIndex = 0;
                //if(ss[0] == "S")
                //{
                //    markIndex = 0;
                //}
                //if (ss[1] == "H")
                //{
                //    markIndex = 1;
                //}
                //if (ss[2] == "C")
                //{
                //    markIndex = 2;
                //}
                //if (ss[3] == "D")
                //{
                //    markIndex = 3;
                //}

                switch (ss[0])
                {
                    case "S": markIndex = 0; break;
                    case "H": markIndex = 1; break;
                    case "C": markIndex = 2; break;
                    case "D": markIndex = 3; break;
                }

                card[markIndex, int.Parse(ss[1]) - 1] = 1;
            }

            for (int mark = 0; mark < 4; mark++)
            {
                for (int num = 0; num < 13; num++)
                {
                    if (card[mark, num] == 0)
                    {
                        string m = "";
                        switch(mark)
                        {
                            case 0: m = "S"; break;
                            case 1: m = "H"; break;
                            case 2: m = "C"; break;
                            case 3: m = "D"; break;
                        }

                        Console.WriteLine(m + " " + (num + 1));
                    }
                }
            }
        }
    }
}