1-8
: 1s set, cross RH, cast 2 places, lead up the middle and cross to
  original places
9-16
: 1s lead down for 3 steps, up for 3 & cast to face 1st corners
17-24
: 1s turn 1st corner RH, partner LH, 2nd corner RH, partner LH to 2nd
  place own sides
25-32
: 2s+1s+3s Adv+Ret 1 step twice & turn 2H