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: Wrong Answer)

#include<stdio.h>
int main()
{
	int a,b,k,i,j;
	while(scanf("%d%d%d",&a,&b,&k)==3)
	{
		if(b-a<=k)
		{
			for(i=a;i<=b;i++)
			printf("%d\n",i);
		}
		else if((a+k)<=(b-k))
		{
			for(i=a;i<a+k;i++)
				printf("%d\n",i);
			for(j=b-k+1;j<=b;j++)
				printf("%d\n",j);
		}
		else
		{
			for(i=a;i<=a+k;i++)
				printf("%d\n",i);
				int count;
			for(j=b,count=1;count<=b-k-a;j--,count++)
				printf("%d\n",j);
		}
	}
	return 0;
}