C111123313121111121111331333133313121111121111133313331333133313331323223323321   >>    C11112331312111112111133133313331312111112111113331333133313331333132322332332   <<    C111123313121111121111331333133313121111121111133313331333133313331323223323323   >>      C111123313121111121111331333133313121111121111133313331333133313331323223323322   >>