1-8
: 1s cast (2s step up) & dance 1/2 Fig 8 (1M down round 3L, 1L up
  round 2M), 1s pass LSh to 1M between 2s, 1L between 3s facing 3rd
  corners
9-16
: 1M+2s & 1L+3s dance reels of 3 across (1s LSh to 3rd corner).  1s end in
  centre LSh to LSh facing own side ready for ...
17-24
: 1M+2s & 1L+3s dance RH across, 1s pass RSh; 1M+3s & 1L+2s dance LH
  across.  1s end in 2nd place opp side
25-32
: 1s cross LH, cast (3s step up); All 3 couples turn RH