Return the smallest non-negative integer that can be added to originalNumber such that the resulting integer contains at least one digit k. All numbers should have no extra leading zeroes.
|-||originalNumber will contain between 1 and 50 characters, inclusive.|
|-||originalNumber will contain only digits ('0'-'9').|
|-||originalNumber will represent a non-negative integer with no extra leading zeroes.|
|-||k will be between 0 and 9, inclusive.|