n, x, y = map(int, input().split())
r = list(map(int, input().split()))

r_sum = r[0]+sum(r[1:])*2
l = max(0, r[0]-sum(r[1:])*2)


if l*l <= x*x+y*y <= r_sum*r_sum:
    print("Yes")
else:
    print("No")