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

Input: Consider Input: Most women have _ problems getting pregnant with a retroverted uterus.

Output: no


Input: Consider Input: Carbon comes in _ kinds- dust, coconut shell or granulated.

Output: three


Input: Consider Input: Breast milk is the preferred food for an infant for the first _ to six months.


Output: four