from math import sqrt


def primetest(x):
    if x < 2 or (x > 2 and x % 2 == 0):
        return False
    d = 3
    while d <= sqrt(x):
        if x % d == 0:
            return False
        d += 2
    return True


x = [i for i in range(1001) if primetest(i)]

print(x)