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
fscanf(STDIN, "%d %d %d", $a, $b, $k);
$factors = [];
if ($b-$a >= 2*$k){
    for ($tmp = $a; $tmp < $a+$k; $tmp++){
        array_push($factors, $tmp);
    }
    for ($tmp = $b-$k+1; $tmp <= $b; $tmp++){
        array_push($factors, $tmp);
    }
} else {
    for ($tmp = $a; $tmp <= $b; $tmp++){
        array_push($factors, $tmp);
    }
}
sort($factors);
for ($tmp = 0; $tmp < count($factors); $tmp++){
    print("{$factors[$tmp]}\n");
}
?>