C111123313121111121111331333133313331313331323121111133313232223132333131   >>    C11112331312111112111133133313331333131333132312111113331323222313233313   <<    C111123313121111121111331333133313331313331323121111133313232223132333133   >>      C111123313121111121111331333133313331313331323121111133313232223132333132   >>