C111123313121111121111331323133313331333132333133313331323221333132322231   >>    C11112331312111112111133132313331333133313233313331333132322133313232223   <<    C111123313121111121111331323133313331333132333133313331323221333132322233   >>      C111123313121111121111331323133313331333132333133313331323221333132322232   >>