random_walk

from random import choice
t = ""
s = " ▁▂▃▄▅▆▇█"
z = 0
for i in range(5000):
	z += choice([-1, 1])
	if z < 0:
		z = z + 2
	elif z >= len(s):
		z = z - 2
	t += s[z]

print(t)