Fix back-to-front math
Fix back-to-front math

ppy/osu,peppy/osu,ppy/osu,smoogipoo/osu,UselessToucan/osu,peppy/osu-new,NeoAdonis/osu,ppy/osu,smoogipooo/osu,UselessToucan/osu,NeoAdonis/osu,smoogipoo/osu,UselessToucan/osu,NeoAdonis/osu,smoogipoo/osu,peppy/osu,peppy/osu