r1 = 2
r2 = 1
pi = 3,14


while True:
    x = float(input())
    y = float(input())

    if x**2+y**2<=r1**2 and x**2+y**2>=r2**2 and (x >= 0 or y >= 0):
        print("yes")
    else:
        print("no")