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First solution in Clear category for The Most Wanted Letter by tokiojapan55
import re
def checkio(text: str) -> str:
table = [0] * 26
for c in list(text.lower()):
if re.search("[a-z]", c):
table[ord(c) - ord('a')] += 1
c,m,i = '',0,0
for n in table:
if n > m:
c = chr(ord('a') + i)
m = n
i += 1
return c
June 17, 2020