A password is considered strong if the below conditions are all met:

It has at least $6$ characters and at most $20$ characters.

It contains at least one lowercase letter, at least one uppercase letter, and at least one digit.

It does not contain three repeating characters in a row $($i$.$e$.,$

is weak, but

is strong$).$

Given a string password, return the minimum number of steps required to make password strong. if password is

already strong, return $0.$

In one step, you can:

Insert one character to

Delete one character from

$,$ or

Replace one character of password with another character.

Example $1$:

Input: password $="$a$"$

Output: $5$