Find Junk Patterns In Employee Name

string starts with 3 digit same number
111 H,777GGG,9999 H etc

string starts with NULL

string that starts with sequential digits
123g,897 k

string that starts with sequential alphabets
abcmki12, ghimkkk, rst123 5 etc

string only one character (digit or letter)

string only has same character repeated 3 times except for OOO

string only has three characters, 1 digit and two letters or 2 digit one letter

string that has only two characters one digit and one letter