03. Wolf In Sheep's Clothing

animals = input().split(', ')

if animals[-1] == 'wolf':
    print("Please go away and stop eating my sheep")
else:
    for index in range(len(animals)):
        if animals[index] == 'wolf':
            sheep_index = len(animals) - index - 1
            break
    print(f"Oi! Sheep number {sheep_index}! You are about to be eaten by a wolf!")