B33113313132313113313223313331323133313223313231333133313331322211232311211   >>    B3311331313231311331322331333132313331322331323133313331333132221123231121   <<    B33113313132313113313223313331323133313223313231333133313331322211232311213   >>      B33113313132313113313223313331323133313223313231333133313331322211232311212   >>