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Ukrainian Olympiad in Informatics, I Stage

Who has the highest grade?

Petryk, Marichka, and Olynka have just got their grades. They decided to play a game: the winner is a person who got the highest grade. Please help them to figure out who is the winner. \InputFile The first line contains three integers $p$, $m$, $o$ ($1 \leq p, m, o \leq 12$) --- the grades of Petryk, Marichka, and Olenka. It is guaranteed that all grades are different. \OutputFile Print out <<\t{Petryk}>> if Petryk has the highest grade; print out <<\t{Marichka}>> if Marichka has the highest grade; otherwise, print out <<\t{Olenka}>>.
Time limit 1 second
Memory limit 256 MiB
Input example #1
8 10 12
Output example #1
Olenka
Input example #2
7 9 3
Output example #2
Marichka
Author Roman Derkach
Source Ukrainian Olympiad in Informatics 2020/2021, I stage