C111112111133131121133133313331333131333132331121111331323132333132321121   >>    C11111211113313112113313331333133313133313233112111133132313233313232112   <<    C111112111133131121133133313331333131333132331121111331323132333132321123   >>      C111112111133131121133133313331333131333132331121111331323132333132321122   >>