a = int(input())
b = int(input())
c = int(input())
ans = False
for x in range(1, b + c - a):
    for y in range(1, b + c - a - x):
        l1 = (a + y) * b * b + x * c * c - x * (a + y) * (a + x + y)
        l2 = (a + x) * c * c + y * b * b - y * (a + x) * (a + x + y)
        if ((a + x + y) * (b * b - x * x) + l1) ** 2 * l2 * c * c == ((a + x + y) * (c * c - y * y) + l2) ** 2 * l1 * b * b:
            ans = True
print('Yes' if ans else 'No')