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;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

namespace abc093_b
{
    class program
    {
        static void Main(string[] args)
        {
            ChangeLocalDebugInput();

            string[] input = Console.ReadLine().Split(' ');
            int a = int.Parse(input[0]);
            int b = int.Parse(input[1]);
            int k = int.Parse(input[2]);

            List<int> l = new List<int>();
            for (int i = a; i <= Math.Min(b,a+k-1); i++)
            {
                if (!l.Contains(i))
                {
                    l.Add(i);
                }
            }
            for (int i = Math.Max(a, b-k+1); i <= b; i++)
            {
                if (!l.Contains(i))
                {
                    l.Add(i);
                }
            }
            foreach (int c in l)
            {
                Console.WriteLine(c);
            }

            Console.ReadKey();
        }


        [System.Diagnostics.Conditional("LOCAL_DEBUG")]
        static void ChangeLocalDebugInput()
        {
            Console.SetIn(new System.IO.StreamReader("../../stdin.txt"));
        }
    }
}