Thanks a lot for quick response but sir according to me it will also match to “42 42 42 42”
as it has “42 42 42” in the beginning and “42 42 42” in the end. Please elaborate sir.
Thanks a lot!
You have one number capture group at the beginning, one whitespace, one number capture group, one whitespace, and one number capture group at the end. Any deviation from that will fail.