products = {'shoes':{'name':' Woodlands',
                     'price':15000},
            'shirt':{'name':'Avengers shirt',
                     'price':2900}
            }


def fun_discount(product,dis):
    p = products[product]['price']
    final_price  = p - int(p * (dis/100))
    assert ( 0 <= final_price)
    return (final_price)

print(fun_discount('shirt',100))