import sys

while 1:
  try:
    sz, t = input().split()
  except:
    break
  sz = int(sz)
  
  if sz==1:
    print(1)
  elif t=='K':
    print(4)
  elif t=='N':
    if sz == 2:
      print(1)
    else:
      print(2)
  elif t=='R':
    print(sz)
  elif t=='B':
    print(sz)