Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

Input: Consider Input: Kayak paddles have ____ blades, canoe paddles have one.

Output: two


Input: Consider Input: Kittens take solid food within ____ months.

Output: two


Input: Consider Input: Cartographers often divide scales into ____ different categories.


Output: three