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solutions
tests
.rmotr
README.md
main.py

README.md

Max character

Write a function max_char that receives a string and returns the "maximum" character in it. Max is defined as a < b < ... < z ignoring uppercase chars (all strings provided will be lowercase). Important: If the string received is empty, the result should be an empty string. Example:

max_char('azg')  # 'z'
max_char('')  # ''