C111112111133131121133133313331333133313331323132313331333131133132213121   >>    C11111211113313112113313331333133313331333132313231333133313113313221312   <<    C111112111133131121133133313331333133313331323132313331333131133132213123   >>      C111112111133131121133133313331333133313331323132313331333131133132213122   >>