1-8
: 1s dance in & cast 1 place (2s step up), dance down between 3s & cast
  back to 2nd place
9-16
: 1s dance reels of 3 across (1L with 2s, 1M with 3s, 1s LSh to 1[st]
  corners)
17-24
: 1s set & cross RH, set & 3/4 turn LH
25-32
: 1s dance RH across (1L with 2s, 1M with 3s), pass RSh & dance LH across
  with other couple