import random
random.seed(42)

def calculate_p(N):
    cnt_21_40 = 0
    for i in range(N):
        random_integer = random.randint(1, 100)
        if random_integer >= 21 and random_integer <= 40:
            cnt_21_40 += 1
    return cnt_21_40 / N

p_20 = calculate_p(20)
p_400 = calculate_p(400)
p_10000 = calculate_p(10000)

print(p_20, p_400, p_10000)