B331133131323131133132233133313233313331322333121111133313231221   >>    B33113313132313113313223313331323331333132233312111113331323122   <<    B331133131323131133132233133313233313331322333121111133313231223   >>      B331133131323131133132233133313233313331322333121111133313231222   >>