1-8
: 1s set, turn RH, lead down below 2s, 1L casts up & 1M casts down on own
  sides to end 1L between 2s & 1M between 3s
9-16
: 1s dance reels of 3 across (giving RSh to 1st corner) & end facing 1st
  corners
17-24
: 1s set & turn 1st corners, set & turn 2nd corners & 1s end between 2s+3s
  on opposite sides
25-32
: 2s+1s+3s Adv+Ret, 1s cross back to places