Solution.py

import re

P = input()

regex_integer_in_range = r'^[1-9][\d]{5}$'  # Do not delete 'r'.
regex_alternating_repetitive_digit_pair = r'(\d)(?=\d\1)'  # Do not delete 'r'.

print (bool(re.match(regex_integer_in_range, P))
       and len(re.findall(regex_alternating_repetitive_digit_pair, P)) < 2)