C13223313311212111133133313331333133313232233131333131231231121   >>    C1322331331121211113313331333133313331323223313133313123123112   <<    C13223313311212111133133313331333133313232233131333131231231123   >>      C13223313311212111133133313331333133313232233131333131231231122   >>