In this task, you are given a string with duplicate characters ocurring in the string. You need to return the character which is ocurring with the maximum frequency. In case of a tie, return the character with the least ascii value.

Q: nlaltmivwslqulylzopulbkzbhucvnogrfbmpwpvwn

A: l
****
Q: wtypbdfihatxyajoneskjplfppvjnnpabjnzbvctki

A: p
****
Q: adfuaeqlkiofguplnmognamabrifkhktmvukqjypjftftzwbv

A:
f
****