regex_integer_in_range = r"^[1-1][0-9][0-9][0-9][0-9][0-9]$|^[2-9][0-9][0-9][0-9][0-9][0-9]$"


regex_alternating_repetitive_digit_pair = r"(\d)(?=\d\1)"

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


import re
P = input()

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

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

regex_integer_in_range = r'[100000-999999]'	# Do not delete 'r'.
regex_alternating_repetitive_digit_pair = r"(\d)(?=\d\1)"	# Do not delete 'r'.

import re
P = input()

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