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 Java (OpenJDK 11.0.6) (judge verdict: Wrong Answer)

import java.util.*;
 
public class Main{
	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
        int n1 = sc.nextInt();
        int n2 = sc.nextInt();
        int n3 = sc.nextInt();
        ArrayList<Integer> ans = new ArrayList<>();
        if(n3 > n2 - n1 + 1){
        	for(int i = n1; i <= n2; i++){
            	System.out.println(i);
            }
        }else{
        	for(int i = 0; i < n3; i++){
        		ans.add(n1);
            	n1++;
        	}
        	for(int i = 0; i < n3; i++){
        		ans.add(n2);
            	n2--;
        	}
        	Collections.sort(ans);
        	for(int i = 0; i < ans.size() - 1; i++){
        		if(ans.get(i) == ans.get(i + 1)){
            		ans.remove(i);
            	}
        	}
        	for(int i = 0; i < ans.size(); i++){
        		System.out.println(ans.get(i));
        	}
        }
    }
}