import random as rn
n =10
h = [0] * n
rep =False
lastlast = rn.randrange(0, n)
last = (lastlast + rn.randrange(1, n)) % n
for i in range(n * 100000):
r = (lastlast + rn.randrange(1, n - 1)) % n
if r == last:
r = (lastlast + n - 1) % n
if r == last or r == lastlast:
rep = True
lastlast = last
last = r
h[last] += 1
#print(last)
if rep:
print("failed")
else:
print("freqs", h)
aW1wb3J0IHJhbmRvbSBhcyBybgpuID0xMApoID0gWzBdICogbgpyZXAgPUZhbHNlCmxhc3RsYXN0ID0gcm4ucmFuZHJhbmdlKDAsIG4pCmxhc3QgPSAobGFzdGxhc3QgKyBybi5yYW5kcmFuZ2UoMSwgbikpICUgbgpmb3IgaSBpbiByYW5nZShuICogMTAwMDAwKToKICAgIHIgPSAobGFzdGxhc3QgKyBybi5yYW5kcmFuZ2UoMSwgbiAtIDEpKSAlIG4KICAgIGlmIHIgPT0gbGFzdDoKICAgICAgICByID0gKGxhc3RsYXN0ICsgbiAtIDEpICUgbgogICAgaWYgciA9PSBsYXN0IG9yIHIgPT0gbGFzdGxhc3Q6CiAgICAgICAgcmVwID0gVHJ1ZQogICAgbGFzdGxhc3QgPSBsYXN0CiAgICBsYXN0ID0gcgogICAgaFtsYXN0XSArPSAxCiAgICAjcHJpbnQobGFzdCkKaWYgcmVwOgogICAgcHJpbnQoImZhaWxlZCIpCmVsc2U6CiAgICBwcmludCgiZnJlcXMiLCBoKQ==
freqs [99850, 99803, 100590, 99944, 99813, 99939, 100225, 99913, 100063, 99860]