C1111133313331323223313331333133313331322133313331323221211113313331311223321   >>    C111113331333132322331333133313331333132213331333132322121111331333131122332   <<    C1111133313331323223313331333133313331322133313331323221211113313331311223323   >>      C1111133313331323223313331333133313331322133313331323221211113313331311223322   >>