In [8]:
"""
A permutation is an ordered arrangement of objects. For example, 3124 is one possible permutation of the
digits 1, 2, 3 and 4. If all of the permutations are listed numerically or alphabetically, we call
it lexicographic order. The lexicographic permutations of 0, 1 and 2 are:
012 021 102 120 201 210
What is the millionth lexicographic permutation of the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9?"""
import itertools
''.join(list(itertools.permutations('0123456789', 10))[999999])
Out[8]: