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

Ex Input:
Birds bitten by infected mosquitoes are infectious from _ to eight days.

Ex Output:
four


Ex Input:
Nymphs feed for five to _ weeks before entering the adult stage.

Ex Output:
eight


Ex Input:
Normal cats have five front toes and _ back toes.

Ex Output:

four