axiom
#
   G( -0.03, -7.41)
   W(0.03) 
   S(0.06)
   A(90)
   P(0,0,1)
#
   +C-F;

rules 6
   C=T+C+C+C+T;
   T=FTTF;
end

rules 1
   T=FF;
   C=F-F-F;
end