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 C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
public class Hello{
    public static void Main(){
        int[] n = Array.ConvertAll(Console.ReadLine().Split(' '),int.Parse);
        int a = n[0];
        int b = n[1];
        int k = n[2];
        
        if(b - a + 1 < k * 2){
            for(int i = a;i <= b;i++){
                Console.WriteLine(i);
            }
        }else{
            for(int i = 0;i < k;i++){
                Console.WriteLine(a + i);
            }
            for(int j = 0;j < k;j++){
                Console.WriteLine(b - k + 1 + j);
            }
        }
     }
}