0660. Remove 9

https://leetcode.com/problems/remove-9

Description

Start from integer 1, remove any integer that contains 9 such as 9, 19, 29...

Now, you will have a new integer sequence [1, 2, 3, 4, 5, 6, 7, 8, 10, 11, ...].

Given an integer n, return the nth (1-indexed) integer in the new sequence.

Example 1:

**Input:** n = 9
**Output:** 10

Example 2:

**Input:** n = 10
**Output:** 11

Constraints:

• 1 <= n <= 8 * 108

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