from random import random

antfeil = 0; N = 100000
x0 = 0; y0 = 0; z0 = 0; ikkelik1 = 0; ikkelik2 = 0;
for i in range(N):
    x = random(); y = random(); z = random()
    res1 = (x + y) + z
    res2 = x + (y + z)
    if res1 != res2:
        antfeil += 1
        x0 = x; y0 = y; z0 = z
        ikkelik1 = res1
        ikkelik2 = res2
print (100. * antfeil/N)
print (x0, y0, z0, ikkelik1 - ikkelik2)