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

if n == 1:
    r = R[0]
    if x ** 2 + y ** 2 == r ** 2:
        print("Yes")
    else:
        print("No")
else:
    ma = R[0] + 2 * sum(R[1:])
    mi = R[0] - 2 * sum(R[1:])
    if mi > 0 and (x ** 2 + y ** 2) < mi ** 2:
        print("No")
    elif x ** 2 + y ** 2 <= ma ** 2:
        print("Yes")
    else:
        print("No")