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.

svplpmqecpkpsovlluundievqprydthpooonwfkkypxzf
p
The most frequently occurring character in svplpmqecpkpsovlluundievqprydthpooonwfkkypxzf is p (occurs 8 times) and it has the least ascii value among all such characters..