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++14 (GCC 5.4.1) (judge verdict: Accepted)

#include <iostream>
#include <stdio.h>
#include <stdlib.h>
using namespace std;

int main()
{
    int a,b,k,i,j;
    cin>>a>>b>>k;
    for(i=a;(i<(a+k))&&(i<=b);i++)
    {
        cout<<i<<endl;
    }
    int c;
    c=2*k-(b-a);
    if(c>=2)
    for(j=b-k+c;(j<=b)&&(j>=a);j++)
        cout<<j<<endl;
        else
            for(j=b-k+1;(j<=b)&&(j>=a);j++)
            cout<<j<<endl;
    return 0;
}