l=17,10
#t               
#                 t
#
#        
#        w
#        w      t
#        w
#        w
# P      w t  G
#      t w
##
#
#
#
#        
#        w
#        w
#        w
#        w
#        w     
#        w
o=rotfire,4,4,0,180,1,0,7
o=rotfire,12,4,0,90,-1,0,7
next=bridge