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]: sgjoehdkbkjxdtcmyljujgjmxghxwqsbmyarzbml
[A]: j


[Q]: gwrrvxaiuyuxxhtmbmjwkrhzytcbtzdgppusmlxlsc
[A]: x


[Q]: anpavqmduzymwjxddrnjmrciwhoyknkkzdezkpnzxviel
[A]:
d