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 (GCC 5.4.1) (judge verdict: Accepted)

#include "stdio.h"
int main()
{
	long A, B;
	long i;
	int k,start;

	long smallcount = 0;
	long th;
	scanf("%ld %ld %d",&A,&B,&k);
	th = B - k;
	if (th < A)th = A;
	for (i = A; i <= B; i++, smallcount++) {
		if (smallcount < k) {
			printf("%ld\n", i);
		}
		else if(i > th) {
			printf("%ld\n", i);
		}
	}

	return 0;
}