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 Python3 (judge verdict: Accepted)

#!/usr/bin/python3
# -*- coding: utf-8 -*-

import sys

class suits():
    def __init__(self, symbol):
        self.exist = [False for i in range(14)]
        self.symbol = symbol

    def mark_exist(self, rank):
        self.exist[rank] = True

    def is_exist(self, rank):
        return self.exist[rank]

spade = suits('S')
heart = suits('H')
club = suits('C')
diamond = suits('D')

n = int(sys.stdin.readline())
for i in range(n):
    suit, rank_s = sys.stdin.readline().split()
    rank = int(rank_s)
    if suit == 'S':
        spade.mark_exist(rank)
    elif suit == 'H':
        heart.mark_exist(rank)
    elif suit == 'C':
        club.mark_exist(rank)
    elif suit == 'D':
        diamond.mark_exist(rank)
    else:
        raise ValueError

for s in (spade, heart, club, diamond):
    for rank in range(1, 14):
        if s.is_exist(rank) == False:
            print(s.symbol, rank)