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;
namespace CsProgramSpace
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            //Define
            short[] s, h, c, d;
            s = new short[13];
            h = new short[13];
            c = new short[13];
            d = new short[13];
            for(int i= 0; i<13;i++)
            {
                s[i] = -1;
                h[i] = -1;
                c[i] = -1;
                d[i] = -1;
            }
            for (int i = 0; i < n; i++)
            {
                
                string[] strArr = (Console.ReadLine().Split(' ').Select(_ => _).ToArray());
                if (strArr[0] == "S")
                {
                    s[short.Parse(strArr[1])-1] = 1;
                }
                else if (strArr[0] == "H")
                {
                    h[short.Parse(strArr[1])-1] = 1;
                }
                else if (strArr[0] == "C")
                {
                    c[short.Parse(strArr[1])-1] = 1;
                }
                else if (strArr[0] == "D")
                {
                    d[short.Parse(strArr[1])-1] = 1;
                }
            }
            string strs="", strh="", strc="", strd="";
            for(int i = 0; i<13;i++)
            {
                if (s[i] == -1)
                    strs+=string.Format("S {0}\r\n", i+1);
                if (h[i] == -1)
                    strh += string.Format("H {0}\r\n", i + 1);
                if (c[i] == -1)
                    strc += string.Format("C {0}\r\n", i + 1);
                if (d[i] == -1)
                    strd += string.Format("D {0}\r\n", i + 1);
            }
            Console.Write(strs + strh + strc + strd);
        }
    }
}