#1.Matching Specific Characters
Regex_Pattern = r'^[123][012][xs0][30Aa][xsu][\.,]$'

#2.Excluding Specific Characters
Regex_Pattern = r'^[^\d][^aeiou][^bcDF][^\s][^AEIOU][^\.,]$'

#3.Matching Character Ranges
Regex_Pattern = r'^[a-z][1-9][^a-z][^A-Z][A-Z]'
