L = [x * x for x in range(10)]
print(L)
g = (x * x for x in range(10))
for i in range(0, 10):
    print(next(g))


def fib(max):
    n, a, b = 0, 0, 1
    while n < max:
        yield b
        a, b = b, a + b
        n = n + 1
    return 'done'


fib(10)