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 PHP (5.6.30) (judge verdict: Accepted)

<?php
$abk = explode(" ",trim(fgets(STDIN)));


for($i=0;$i<$abk[2];$i++){
$ans[] = $i+$abk[0];
if(count($ans)==$abk[1]-$abk[0]+1){
break;
}
}
for($i=0;$i<$abk[2];$i++){
if(count($ans)==$abk[1]-$abk[0]+1){
  break;
  }
$ans[] = $abk[1]-$i;
}
sort($ans);
foreach($ans as $value){
echo $value."\n";
}