An Elf just remembered one more important detail: the two adjacent matching digits are not part of a larger group of matching digits.
Given this additional criterion, but still ignoring the range rule, the following are now true:
112233
meets these criteria because the digits never decrease and all repeated digits are exactly two digits long.123444
no longer meets the criteria (the repeated 44
is part of a larger group of 444
).111122
meets the criteria (even though 1
is repeated more than twice, it still contains a double 22
).How many different passwords within the range given in your puzzle input meet all of the criteria?