B33113313132313113313223313331323132322132333133313331323133313121221   >>    B3311331313231311331322331333132313232213233313331333132313331312122   <<    B33113313132313113313223313331323132322132333133313331323133313121223   >>      B33113313132313113313223313331323132322132333133313331323133313121222   >>