C3123121111113313121111331333133312111113121111331333132233132322231   >>    C312312111111331312111133133313331211111312111133133313223313232223   <<    C3123121111113313121111331333133312111113121111331333132233132322233   >>      C3123121111113313121111331333133312111113121111331333132233132322232   >>