
import java.util.Scanner;

public class Main {
	public static void main(String[] args){
		//????????£????????????
		Scanner sc =  new Scanner(System.in);
		//??????????????£?¨?
		boolean[][] card = new boolean[4][13];
		//String???????????????????????????
		String make = new String();
		//?????????????????¨????????°????????£?????\???
		int n = sc.nextInt();
		//??\?????????????????????????????°????????????
		for(int i =0; i< n;i++){
			//?????????????????£?????\???
			make = sc.next();
			//?????????????????´????????? OK
			if(make.equals("S")){
				//S??¨??°?????????????????? true
				card[0][sc.nextInt()-1] = true;
			}else if(make.equals("H")){
				card[1][sc.nextInt()-1] = true;
			}else if(make.equals("C")){
				card[2][sc.nextInt()-1] = true;
			}else if(make.equals("D")){
				card[3][sc.nextInt()-1] = true;
			}
		}
		//??¨???????????????????????????
		for(int i = 0;i<card.length;i++){
			for(int j = 0;j<card[0].length;j++){
				//?????????????????´?????????????????´???
				if(!card[i][j]){
					if(i ==0){
						System.out.println("S" + (j+1));
					}
					if(i ==1){
						System.out.println("H"+ (j+1));
					}
					if(i ==2){
						System.out.println("C"+ (j+1));
					}
					if(i ==3){
						System.out.println("D"+ (j+1));
					}
				}
			}
		}
	}
}