C1111133313331323223313331333133313113313231331121111133313113313222311   >>    C111113331333132322331333133313331311331323133112111113331311331322231   <<    C1111133313331323223313331333133313113313231331121111133313113313222313   >>      C1111133313331323223313331333133313113313231331121111133313113313222312   >>