n = input()
   
S = range(1, 14)
H = range(1, 14)
C = range(1, 14)
D = range(1, 14)
   
for i in range(0, n):
   mk = raw_input()split()
   num = int, raw_input()split()
      if mk == 'S':
         S[r-1] = 0
      elif mk == 'H':
         S[r-1] = 0
      elif mk == 'C':
         S[r-1] = 0
      elif mk == 'D':
         S[r-1] = 0
   
for i in S:
   if S[i] != 0:
      print 'S'+str(S[i])
  
for i in H:
   if S[i] != 0:
      print 'H'+ str(H[i])
  
for i in C:
   if S[i] != 0:
      print 'C'+str(C[i])
  
for i in D:
   if S[i] != 0:
      print 'D'+str(D[i])