B33113313132313113313223313331323133313111111331323221123311211   >>    B3311331313231311331322331333132313331311111133132322112331121   <<    B33113313132313113313223313331323133313111111331323221123311213   >>      B33113313132313113313223313331323133313111111331323221123311212   >>