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: Norplant implants are ____ matchstick size rods that are inserted into the upper arm.

Output: six


Input: Consider Input: Calcite makes up ____ well known rocks limestone and marble.

Output: two


Input: Consider Input: Insects have three main body parts, ____ legs and antennae.


Output: six