blue + blue -> blue
blue + red -> yellow
blue + yellow -> red
red + blue -> yellow
red + red -> red
red + yellow -> blue
yellow + blue -> red
yellow + red -> blue
yellow + yellow -> yellow

 blue red yellow
400 zero
400 zero
400 zero
 one two zero zero

 blue red yellow red yellow blue red yellow red blue
120 zero
120 zero
120 zero
120 zero
120 zero
120 zero
120 zero
120 zero
120 zero
120 zero
 one two zero zero