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: Beryllium has ____ protons and four electrons.

Output: four


Input: Consider Input: Nymphs reach maturity in five to ____ months, with faster maturation at higher temperatures.

Output: ten


Input: Consider Input: Salt prints are the most modern of the ____ photographic processes.


Output: three