C13223313311212111133133313331333132313331333133313232332322121   >>    C1322331331121211113313331333133313231333133313331323233232212   <<    C13223313311212111133133313331333132313331333133313232332322123   >>      C13223313311212111133133313331333132313331333133313232332322122   >>