C13332313311211113313331333133313331323321333133313232233312121121   >>    C1333231331121111331333133313331333132332133313331323223331212112   <<    C13332313311211113313331333133313331323321333133313232233312121123   >>      C13332313311211113313331333133313331323321333133313232233312121122   >>