package main

import (
	"fmt"
	"strings"
)

func main() {
	var n int
	fmt.Scan(&n)
	m := make(map[string]bool)
	for i := 0; i < n; i++ {
		var s string
		fmt.Scan(&s)
		m[s] = true
	}
	ans := make([]string, 0)
	for _, v1 := range "DCHS" {
		for _, v2 := range "A23456789TJQK" {
			s := string(v1) + string(v2)
			if m[s] {
				ans = append(ans, s)
			}
		}
	}
	fmt.Println(strings.Join(ans, " "))
}