C111123313121111121111331333133313331333133313331333133313331323233313131   >>    C11112331312111112111133133313331333133313331333133313331333132323331313   <<    C111123313121111121111331333133313331333133313331333133313331323233313133   >>      C111123313121111121111331333133313331333133313331333133313331323233313132   >>