C13223313311212111133133313331333131212111113331333131333211221   >>    C1322331331121211113313331333133313121211111333133313133321122   <<    C13223313311212111133133313331333131212111113331333131333211223   >>      C13223313311212111133133313331333131212111113331333131333211222   >>