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
    $abk = array_map("intVal", explode(" ", trim(fgets(STDIN))));
    $a = $abk[0];
    $b = $abk[1];
    $k = $abk[2];
    $ans = [];
    for($i=$a; $i<$a+$k; $i++){
        if($i<=$b){
            $ans[] = $i;
        }    
    }
    for($i=$b-$k+1; $i<=$b; $i++){
        if($a<=$i){
            $ans[] = $i;
        }
    }
    $ans = array_unique($ans);
    foreach($ans as $a){
        echo $a . PHP_EOL;
    }
?>