1-4
: 1s cast (2s step up), turn LH to end BtoB in centre facing own
  side **while** 4s turn RH & cast up to face 1s
5-12
: 1s+4s dance reel of 4 across. 1s pass RH at end & retain hands, 4s face
  out
13-16
: 4s cast back to 4th place & turn LH **while** 1s turn RH & cast back
  to 1st place (2s step down 15-16)
17-24
: 1s cross down below 2s, out behind 3s, cross LH & cast to bottom
  (2s+3s+4s step up 23-24)
25-32
: 2s+3s+4s+1s circle 8H round & back