n, x, y = io.read("*n", "*n", "*n")
a = {}
for i = 1, n do a[i] = io.read("*n") end
table.sort(a)
f = nil
if n == 1 then
  f = a[1] * a[1] == x * x + y * y
else
  r = -a[1]
  for i = 1, n do
    r = r + 2 * a[i]
  end
  f = 1LL * x * x + 1LL * y * y <= 1LL * r * r
  if 2000 * 1000 * 1000 < r then
    f = true
  end
end
print(f and "Yes" or "No")