C1111133313331323223313331333133313311211111211331333131133133313232112323121   >>    C111113331333132322331333133313331331121111121133133313113313331323211232312   <<    C1111133313331323223313331333133313311211111211331333131133133313232112323123   >>      C1111133313331323223313331333133313311211111211331333131133133313232112323122   >>