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.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	public void maain(){

	}

	public static void main(String[] args) throws IOException {
		// TODO ?????????????????????????????????????????????
		//?????????????¨?????????£?¨?
		boolean[] S = new boolean[13];
		boolean[] H = new boolean[13];
		boolean[] C = new boolean[13];
		boolean[] D = new boolean[13];

		//1???????????\????????¢
		InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);

        String[] input = br.readLine().split(" ");
        int n = Integer.parseInt(input[0]);

        //2???????????\????????¢
        for(int set = 0;set < n; set++ ){
        	String[] input2 = br.readLine().split(" ");
        	String mark = input2[0];
        	int num = Integer.parseInt(input2[1]);

        	//?????£?????????????????????true???????????????
        	if(mark.equals("S")){
        		S[num - 1] = true;
        	}else if(mark.equals("H")){
        		H[num - 1] = true;
         	}else if(mark.equals("C")){
        		C[num - 1] = true;
        	}else if(mark.equals("D")){
        		D[num - 1] = true;
      		}
        }

        //?????£?????????????????????????????¢?????¨???????????????
    	for(int set = 0;set < 13; set++){
    		if(S[set] == false){
    			System.out.println("S" + " " + (set + 1));
    		}
    	}
    	for(int set = 0;set < 13; set++){
    		if(H[set] == false){
    			System.out.println("H" + " " + (set + 1));
    		}
    	}
    	for(int set = 0;set < 13; set++){
    		if(C[set] == false){
    			System.out.println("C" + " " + (set + 1));
    		}
    	}
    	for(int set = 0;set < 13; set++){
    		if(D[set] == false){
    			System.out.println("D" + " " + (set + 1));
    		}
    	}
	}
}