# Nth Number

Posted: 10 Sep, 2020
Difficulty: Hard

## PROBLEM STATEMENT

#### In a series of numbers where each number is such that the sum of its digits equals 10. Given an integer value 'N', your task is to find the N-th positive integer whose sum of digits equals to 10.

##### Input Format:
``````The first line contains an Integer 'T' which denotes the number of test cases/queries to be run.
Then the test cases follow.

The first line of input for each test case/query contains an integer N, the Nth number to find.
``````
##### Output Format:
``````For each test case, print the N-th positive integer whose sum of digits equals 10.

Output for every test case will be printed in a separate line.
``````

#### Note

``````You do not need to print anything, it has already been taken care of. Just implement the given function.
``````
##### Constraints:
``````1 <= T <= 100
1 <= N <= 10^7

Time Limit: 1sec
`````` Approach 1

The brute force approach is to iterate through numbers starting from 1. For each number, we will check its digit sum. If the digit sum equals 10 we will increment the count. When the count becomes equal to N we will return the current number.