B33113313132313113313223313331311331323112331323133313331323221311112121   >>    B3311331313231311331322331333131133132311233132313331333132322131111212   <<    B33113313132313113313223313331311331323112331323133313331323221311112123   >>      B33113313132313113313223313331311331323112331323133313331323221311112122   >>