from math import exp
from random import uniform
import matplotlib.pyplot as plt

def f(n, f0=100):
	result = f0
	for i in range(n):
		result *= exp(0.2 + uniform(-0.04, 0.04))
	return result

X = list(range(350))
y1 = [f(x) for x in X]
y2 = [100*exp(0.2*x) for x in X]

plt.plot(X, y1, X, y2)
plt.show()