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;
using System.Text;
using System.Threading.Tasks;

namespace 競プロ_Csharp {
    class Program {
        static void Main(string[] args) {

            int n = NextInt();
            bool[] s = new bool[13], h = new bool[13], c = new bool[13], d = new bool[13];

            for (int i = 0; i < n; i++) {

                string[] temp = NextStrings();
                string card = temp[0];
                int num = int.Parse(temp[1]);

                switch (card) {
                    case "S":
                        s[num - 1] = true;
                        break;
                    case "H":
                        h[num - 1] = true;
                        break;
                    case "C":
                        c[num - 1] = true;
                        break;
                    case "D":
                        d[num - 1] = true;
                        break;
                }
                
            }

            for (int i = 0; i < 13; i++) {
                if (s[i] == false) Println("S " + (i + 1));
            }
            for (int i = 0; i < 13; i++) {
                if (h[i] == false) Println("H " + (i + 1));
            }
            for (int i = 0; i < 13; i++) {
                if (c[i] == false) Println("C " + (i + 1));
            }
            for (int i = 0; i < 13; i++) {
                if (d[i] == false) Println("D " + (i + 1));
            }

        }

        public static void Print (Object o) {
            Console.Write(o);
        }

        public static void Println (Object o) {
            Console.WriteLine(o);
        }

        public static string NextString() {
            return Console.ReadLine();
        }

        public static string[] NextStrings () {
            return Console.ReadLine().Split();
        }

        public static int NextInt () {
            return int.Parse(Console.ReadLine());
        }

        public static int[] NextInts () {
            string[] a = Console.ReadLine().Split();
            int[] b = new int[a.Length];
            for (int i = 0; i < a.Length; i++) {
                b[i] = int.Parse(a[i]);
            }
            return b;
        }

        public static double NextDouble () {
            return double.Parse(Console.ReadLine());
        }

    }
}