Question
Stair peak or else ?
You're given three integers a,b,c. Print whether the sequence of these numbers is a stair, peak or nothing.
- A stair satisfies the condition a
- A peak satisfies the condition ac
Input
Given three space separated integers a, b, c. (0 ≤ a, b, c ≤ 9).
Output
Print "Stair" if the digits form a stair, "Peak" if the digits form a peak, and "Nothing" otherwise (output the strings without quotes, case specific).
Example
Input 1
1 2 3
Output
Stair
Input 2
3 2 1
Output
Nothing
1 2 3
Output
Stair
Input 2
3 2 1
Output
Nothing