1-8
: 1s set & cross down RH, 1s cast RSh round 1st corners & 1/2 turn RH in
  centre
9-16
: 1s dance the Snake Pass: 1s dance LH across (1M with 2s & 1L
  with 3s), 1M followed by 2s also 1L by 3s cross diagonally passing RSh
  to change ends & loop round to right to end 3 1 2
17-24
: 3s+1s+2s circle 6H to Left, casting to left chase back to own sides
25-32
: 3s+1s+2s 1/2 turn LH & set (retaining hands), all cast to chase
  clockwise 1/2 way to end on own sides 2 1 3