C111123313121111121111331333133313331333133313331333133313331311213312321   >>    C11112331312111112111133133313331333133313331333133313331333131121331232   <<    C111123313121111121111331333133313331333133313331333133313331311213312323   >>      C111123313121111121111331333133313331333133313331333133313331311213312322   >>