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]: stzhfrtgqpplhnngelefpgaeqarmrxcxrcqhwdyffrwuf
[A]: f


[Q]: iwfyozvcrbibcjwuucnokcoliqhewxpbawpewwewatkkjai
[A]: w


[Q]: fpsmydaqpwzonavgwzjlpwotalkhzmbpcsjnbgbhitww
[A]:
w