B33113313132313113313223313331322331311331322331333132313221211   >>    B3311331313231311331322331333132233131133132233133313231322121   <<    B33113313132313113313223313331322331311331322331333132313221213   >>      B33113313132313113313223313331322331311331322331333132313221212   >>