Adios in ábaco uses movements from columbia (rumba).
You do the caracteristic waving with the right hand while pivoting on your left foot, doing a full turn backwards.
To avoid this movement beeing rushed too much there is somewhat an exception in this figure. You spend the entire ábaco figure doing the turn, so even if the rueda figure adios finishes with dile que no, there is no dile que no in the ábaco figure adios.
Columbia class with Alberto Valdes, showing the waving (02:08) and pivoting (01:20).