a = int(input())
b = int(input())
c = int(input())


def f(a, b, c, l, r):
    x = l + a + r
    t = (b * b + x * x - c * c) / (2 * b * x)
    d2 = b * b + l * l - 2 * b * l * t
    s = (1 - t * t) ** 0.5
    return s * s / d2 * l * l


for d in range(a + 2, b + c):
    if d + b <= c or d + c <= b:
        continue
    for l in range(1, d - a):
        r = d - a - l
        t1 = f(a, b, c, l, r)
        t2 = f(a, c, b, r, l)
        if abs(t1 - t2) < 1e-7:
            print("Yes")
            exit()
print("No")