C1111133313331323223313331333133313331333132213331333133313232322121   >>    C111113331333132322331333133313331333133313221333133313331323232212   <<    C1111133313331323223313331333133313331333132213331333133313232322123   >>      C1111133313331323223313331333133313331333132213331333133313232322122   >>