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 JAVA (judge verdict: Accepted)

import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here!
        Scanner sc = new Scanner(System.in);
        int cnt = sc.nextInt();
        int[][] cards = new int[4][13];
        for(int i=0;i<cnt;i++){
            String mark = sc.next();
            int num = sc.nextInt() - 1;
            switch (mark) {
                case "S":
                    cards[0][num] = 1;
                    break;
                case "H":
                    cards[1][num] = 1;
                    break;
                case "C":
                    cards[2][num] = 1;
                    break;
                case "D":
                    cards[3][num] = 1;
                    break;
            }
        }
        for(int i=0;i<4;i++){
            for(int j=0;j<13;j++){
                if(cards[i][j] != 1){
                    switch (i){
                        case 0:
                            System.out.printf("S %d%n",j+1);
                            break;
                        case 1:
                            System.out.printf("H %d%n",j+1);
                            break;
                        case 2:
                            System.out.printf("C %d%n",j+1);
                            break;
                        case 3:
                            System.out.printf("D %d%n",j+1);
                            break;
                    }
                }
            }
        }
    }
}