C13223313311212111133133313331333133313232233133313331331123323331333132322121   >>    C1322331331121211113313331333133313331323223313331333133112332333133313232212   <<    C13223313311212111133133313331333133313232233133313331331123323331333132322123   >>      C13223313311212111133133313331333133313232233133313331331123323331333132322122   >>