func main()
	var n: int :: cui@inputInt()
	var a: []int :: #[n]int
	for i(0, n - 1)
		do a[i] :: cui@inputInt()
	end for
	var ans: int :: 0
	for i(0, n - 1)
		for j(i + 1, n - 1)
			for k(j + 1, n - 1)
				if(math@gcd(math@gcd(a[i], a[j]), a[k]) = 1)
					do ans :+ 1
				end if
			end for
		end for
	end for
	do cui@print("\{ans}\n")
end func