apple:=(2.9*C+0.1*O+L*0.618+H*0.382+SQRT(L*H)+L+H)/7;
a:REF(apple,1);
b:REF(apple,3);
d:REF(apple,5);
e:REF(apple,7);
f:REF(apple,9);
g:REF(apple,11),colorgray;
I:REF(apple,13);
apple:=(2.9*C+0.1*O+L*0.618+H*0.382+SQRT(L*H)+L+H)/7;
a:REF(apple,1);
b:REF(apple,3);
d:REF(apple,5);
e:REF(apple,7);
f:REF(apple,9);
g:REF(apple,11),colorgray;
I:REF(apple,13);