B33113313132313113313223313331322331311331322331333132313331322121111123331   >>    B3311331313231311331322331333132233131133132233133313231333132212111112333   <<    B33113313132313113313223313331322331311331322331333132313331322121111123333   >>      B33113313132313113313223313331322331311331322331333132313331322121111123332   >>