B33113313132313113313223313331323133313223313231333133313132313221121221   >>    B3311331313231311331322331333132313331322331323133313331313231322112122   <<    B33113313132313113313223313331323133313223313231333133313132313221121223   >>      B33113313132313113313223313331323133313223313231333133313132313221121222   >>