C111112111133131121133133313331333131133133313331322132313233121   >>    C11111211113313112113313331333133313113313331333132213231323312   <<    C111112111133131121133133313331333131133133313331322132313233123   >>      C111112111133131121133133313331333131133133313331322132313233122   >>