$N = gets.to_i
$e = gets.split(" ").map{|s| s.to_i}

def search(a, b, c, i)
	return true if i == $N
	v = $e[i]
	if a + v <= $target then
		return true if search(a+v, b, c, i+1)
	end
	if b + v <= $target then
		return true if search(a, b+v, c, i+1)
	end
	if c + v <= $target then
		return true if search(a, b, c+v, i+1)
	end
	return false
end

sum = $e.sum
if sum % 3 != 0 then
	puts "No"
else
	$target = sum / 3
	puts search(0, 0, 0, 0) ? "Yes" : "No"
end