# Main walk
0:do_shelf
0:do_shelf
0:do_shelf
0:do_doorknobs
0:do_doorknobs
0:do_background
20:do_cabinet
# No more process doable at cyle 51
# Stock :
#  board => 0
#  doorknobs => 0
#  background => 0
#  shelf => 0
#  cabinet => 1