#solution for q2 with any number of companies

def gross_margin(revenue, cost_of_goods_sold):
	result=100*((revenue-cost_of_goods_sold)/revenue)
	return result

def main():
	size=int(input("number of companies "))
	revenue=float(input("enter revenue "))
	cost_of_goods_sold = float(input("enter cost_of_goods_sold "))
	name=input("enter name of the company ")

	res=gross_margin(revenue, cost_of_goods_sold)
	print("gross margin for",name,"is",res)
	max=res
	max_name=name

	for i in range(size-1):
		revenue=float(input("enter revenue "))
		cost_of_goods_sold = float(input("enter cost_of_goods_sold "))
		name=input("enter name of the company ")
		res=gross_margin(revenue, cost_of_goods_sold)
		print("gross margin for",name,"is",res)
		if(max<res):
			max=res
			max_name=name
	print(max_name ,"got max gross margin", max)
main()