Elevator doors easy

      Y    [PI]       Y    [IP]       Y    [PI]       Y       Y
   [PI]       T    [Oi]       T    [iO]       T    [Oi]       T
      T    [iO]       r    [YI]       r    [IY]       r    [IY]
      r       r    [IY]       E    [yO]       E    [Oy]       E
   [iy]       E       E       D       G       H       J       H
      G       g       H       G       g       D       g       G
      g       D       G       g       D       S       a       a
      S       D       g       H       G       d       D       P
      Y       s       Y       S       Y       i       E       i
  [IYE]