instruction:
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.
question:
buxusrcnirvzpgzlulyazqtnawtregxujvpsfsssjanlaiqjwo
answer:
s


question:
pmrdeazqwlsicttsnzzaqiuobgcgabqkqwthmammlviwcl
answer:
a


question:
isxruzavsstbbilurkdsiuqwkquvftxgfajmovlvdwxxn
answer:

s