from itertools import permutations
three_digit_number = '185'
two_digit_permutations = set()
# Generate all two_digit_permutations of three_digit_number
for perm in permutations(three_digit_number, 2):
two_digit_permutations.add(''.join(perm))
two_digit_permutations = sorted(list(two_digit_permutations))
print(two_digit_permutations)
'''
run:
['15', '18', '51', '58', '81', '85']
'''