The character class [ ] matches only one out of several characters placed inside the square brackets.

Task

You have a test string .
Your task is to write a regex that will match with following conditions:

• must be of length: 6
• First character: 1, 2 or 3
• Second character: 1, 2 or 0
• Third character: x, s or 0
• Fourth character: 3, 0 , A or a
• Fifth character: x, s or u
• Sixth character: . or ,

Note

This is a regex only challenge. You are not required to write any code.
You have to fill the regex pattern in the blank (_________).