B331133131323131133132233133313233313331322333121111133313222221   >>    B33113313132313113313223313331323331333132233312111113331322222   <<    B331133131323131133132233133313233313331322333121111133313222223   >>      B331133131323131133132233133313233313331322333121111133313222222   >>