Untitled

import numpy as np

def compute_stats(n):
    numbers = np.arange(n)
    mean = round(np.mean(numbers), 2)
    std_dev = round(np.std(numbers), 2)
    variance = round(np.var(numbers), 2)
    return mean, std_dev, variance

n = int(input())
mean, std_dev, variance = compute_stats(n)
print(mean)
print(std_dev)
print(variance)