1-8
: 1s turn 2H, face up, cast (2s step up), cross RH & cast round 1st
  corners to finish facing 1st corners
9-12
: 1s + 1st corners set, 1s cast round each other (RSh) to 3rd corner
  places as corners dance in, pull back RSh to face their original
  places
13-16
: 1s + 1st corners repeat bars 9-12, corners end in opp corner
  places **while** 1s dance in, pull back RSh to face 2nd corners
17-24
: 1s + 2nd corners repeat bars 9-16, with 1s passing RSh into 2nd place
  opp sides. All now on opp sides (3) (1) (2)
25-32
: 3s+1s+2s Set+Link for 3 twice to end 2 1 3