The gross commanded area for a distributary is 6000 hectares, 80% of which is culturable irrigable. The intensity of irrigation for Rabi season is 50% and that for Kharif season is 25%. If the average duty at the head of the distributary is 2000 hectare/cumec for Rabi season and 1000 hectares/cumec for Kharif season, find out the discharge required.