1-8
: 1s cross down below 2s & cast up to top; cross RH & set
9-16
: 2s cross up & cast down; cross RH & 1s+2s set
17-24
: 1s followed by 2s lead down the middle, 2s followed by 1s lead up
  to 1st/2nd places
25-32
: 2s+1s dance R&L