N, X, Y = map(int, input().split())
R = list(map(int, input().split()))
t = X*X + Y*Y

if N == 1:
    print('Yes' if t == R[0] * R[0] else 'No')
    exit()

R.sort()
r = R[0]
for i in range(1, N):
    r += R[i] * 2
r *= r

print('Yes' if t <= r else 'No')