In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Input: Consider Input: Flexible shapes are also shapes which have _ obvious way of being attacked.

Output: no


Input: Consider Input: Cities have various sizes, and can contain from _ to four armies depending on size.

Output: one


Input: Consider Input: Most babies are ready for solid foods at about four to _ months.


Output: six