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: Salsa works on the basis of Mambo - a pattern of ____ steps danced over eight counts of music.

Output: six


Input: Consider Input: Today there are ____ mating pairs.

Output: four


Input: Consider Input: Homeostasis is ____ people of the same sex living together.


Output: two