1 TRACE 2? 2 number 2.0? 2.0.0+ 2.0.0 ? 2.0.0 ! 2.1! Normal 2.1? 2.1 All 2.1 Commands 2.1 Error 2.1 Failure 2.1 Intermediates 2.1 Labels 2.1 Off 2.1 Results 2.1 Scan 3 ;