C111123313121111121111331323133313331333132333133313232213131121   >>    C11112331312111112111133132313331333133313233313331323221313112   <<    C111123313121111121111331323133313331333132333133313232213131123   >>      C111123313121111121111331323133313331333132333133313232213131122   >>