C1111133313331323223313331333133313113313231331121111121111131313221   >>    C111113331333132322331333133313331311331323133112111112111113131322   <<    C1111133313331323223313331333133313113313231331121111121111131313223   >>      C1111133313331323223313331333133313113313231331121111121111131313222   >>