def s(x):
    return x*x

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

if n == 1:
    if s(x)+s(y) == s(r[0]): print('Yes')
    else: print('No')
else:
    if s(r[0]+2*sum(r[1:])) >= s(x)+s(y): print('Yes')
    else: print('No')