import numpy as np
import datetime
seed = hash(datetime.datetime.day)
salt = hash('We accept your preregistration')
seed = (salt + seed) % (2**32-1)
np.random.seed(seed)
nums = np.random.permutation(range(0,5,1))
np.random.seed(seed)
test_nums = np.random.permutation(range(0,5,1))
assert np.equal(test_nums, nums).all()