func main()
	var a: int :: cui@inputInt()
	var b: int :: cui@inputInt()
	var ans: int :: 0
	for i(a, b)
		if(math@prime(i))
			do ans :+ f(i)
		end if
	end for
	
	do cui@print("\{ans}\n")
	
	func f(x: int): int
		ret x ^ 3 - x ^ 2 + x + 1
	end func
end func