The mighty tree

{ut} add {w}{w}{w}{w}{w}{w}{w}{w}{w}{w}{w}{w}{w}{w}{w}{w}{w}{w}{w}{u}{u}{u}{u}{u}{u}{u}{u}{u}{u}{u}{u}{u}{u}{u}{u}{u}{u}{u}{u}{b}{b}{b}{b}{b}{b}{b}{b}{b}{b}{b}{b}{b}{b}{b}{b}{b}{b}{b}{b}{r}{r}{r}{r}{r}{r}{r}{r}{r}{r}{r}{r}{r}{r}{r}{r}{r}{r}{r}{r}{g}{g}{g}{g}{g}{g}{g}{g}{g}{g}{g}{g}{g}{g}{g}{g}{g}{g}{g}{g}{g}