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: Fitness has ____ components, aerobic and muscular.

Output: two


Input: Consider Input: Sin divides minds into ____ halves.

Output: two


Input: Consider Input: Acoustic instruments consist of ____ main parts neck, top, back and sides.


Output: four