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

ini_set('error_reporting', E_ALL & ~E_NOTICE & ~E_WARNING);
ini_set('display_errors', 'Off');

// define('DEBUG', true);
define('DEBUG', false);

fscanf(STDIN, "%d %d %d", $A, $B, $K);

if ($K > $B - $A + 1) {
    $K = $B - $A + 1;
}

$arr1 = array_fill($A, $K, 1);
$arr2 = array_fill($B - $K + 1, $K, 1);
$arr = $arr1 + $arr2;

echo implode("\n", array_keys($arr)) . "\n";