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 (Clang 3.8.0) (judge verdict: Wrong Answer)

#include <math.h>
#include<stdio.h>
int main()
{
	int A, B, K;
	do
	scanf("%d%d%d", &A, &B, &K);
	while (A<1 | A>pow(10, 9) | B<1 | B>pow(10, 9) | A > B | K > 100 | K < 1);
	int i, j;
	for (i = A; i < A + K&&i<=B; i++)
		printf("%d\n", i);
	for (j = B; j > i && j > B - K+1; j--);
	for(;j<=B&&i<B;j++)
		printf("%d\n", j);
	return 0;
}