Problem:
Score : 200 points

Problem Statement

Print all the integers that satisfies the following in ascending order:

Among the integers between A and B (inclusive), it is either within the K smallest integers or within the K largest integers.

Constraints

1 \leq A \leq B \leq 10^9

1 \leq K \leq 100

All values in input are integers.

Input

Input is given from Standard Input in the following format:

A B K

Output

Print all the integers that satisfies the condition above in ascending order.

Sample Input 1

3 8 2

Sample Output 1

3
4
7
8

3 is the first smallest integer among the integers between 3 and 8.

4 is the second smallest integer among the integers between 3 and 8.

7 is the second largest integer among the integers between 3 and 8.

8 is the first largest integer among the integers between 3 and 8.

Sample Input 2

4 8 3

Sample Output 2

4
5
6
7
8

Sample Input 3

2 9 100

Sample Output 3

2
3
4
5
6
7
8
9

Solution in PHP7 (7.0.15) (judge verdict: Accepted)

<?php
  $stdin = fopen('php://stdin', "r");

  fscanf($stdin, "%d %d %d", $a, $b, $k);

  $r = [];
  for ($i=0; $i<$k; $i++) {
    $n = $a+$i;
    if ($a <= $n && $n <= $b) {
      $r[$n] = $n;
    }
  }

  for ($i=$k; 0<$i; $i--) {
    $n = $b-$i+1;
    if ($a <= $n && $n <= $b) {
      $r[$n] = $n;
    }
  }

  foreach ($r as $num) {
    echo $num.PHP_EOL;
  }