line = input()
line = line.split(", ")
if line[-1] == "wolf":
  print("Please go away and stop eating my sheep")
else:
  for i in line:
    if i == "wolf":
      sheep_number = len(line) - (line.index("wolf")) - 1
  print(f"Oi! Sheep number {sheep_number}! You are about to be eaten by a wolf!")