data = {
    'S':[0 for _ in range(13)],
    'H':[0 for _ in range(13)],
    'C':[0 for _ in range(13)],
    'D':[0 for _ in range(13)],
}
 
n = int(input())
for _ in range(n):
    (s, r) = input().split()
    index = cards[s].index(int(r))
    cards[s][int(r) - 1] = 1
  
for s in ['S', 'H', 'C', 'D']:
    for r in range(13):

        print(s, r)