def nroot(a, n, x=1.0, eps=1e-10000000000):
    while abs(a - x**n) > eps:
        x = ( (n-1)*x + a/(x**(n-1)) ) / n
    return x

a,b,c =map(int,input().split())
d=nroot(a,2)
e=nroot(b,2)
f=nroot(c,2)

if d+e<f:
  print('Yes')
else:
  print('No')