Untitled

from itertools import *

c = 0
for i in product('0123456', repeat=4):
    s = ''.join(i)
    if s.count('5') == 1 and '12' not in s and '21' not in s and '32' not in s and '23' not in s and '52' not in s and '25' not in s and s[0] != '0':
        c += 1
print(c)