35 1 s 64 MB

A *repeatless number* is a positive integer containing no repeated digits. For instance, the first 25 repeatless numbers are

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, …

Given an integer *n*, your goal is to compute the *n*th repeatless number.

The input test file will contain multiple test cases, each consisting of a single line containing the integer *n*, where 1 ≤ *n* ≤ 1000000. The end-of-file is marked by a test case with *n* = 0 and should not be processed.

For each input case, the program should print the *n*th repeatless number on a single line.

## Sample Input | ## Sample Output |
---|---|

25 10000 0 | 27 26057 |