C111112111133131121133133313331333133313331323133313331333131133133312121321   >>    C11111211113313112113313331333133313331333132313331333133313113313331212132   <<    C111112111133131121133133313331333133313331323133313331333131133133312121323   >>      C111112111133131121133133313331333133313331323133313331333131133133312121322   >>