C1111133313331323223313331333133313331323131211113313221333233213231   >>    C111113331333132322331333133313331333132313121111331322133323321323   <<    C1111133313331323223313331333133313331323131211113313221333233213233   >>      C1111133313331323223313331333133313331323131211113313221333233213232   >>