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()
{
	long	int a,b,c,i;
		scanf("%ld %ld %ld", &a,&b,&c);
		if(b-a==1 || a==b){
				for(i=a;i<=b;i++){
						printf("%ld\n", i);
				}
		}else{
				for(i=a;i<=b;i++){
				if(c%2==0){
						if(c==2){
								if(i>a+1 && i<b-1){
						continue;
				}else{
				printf("%ld\n", i);
						}
								}
				else{
								if(i>a+(c/2) && i<b-(c/2)){
						continue;
				}else{
				printf("%ld\n", i);
						}
								}
		}else{
						if(i>a+((c+1)/2) && i<b-((c-1)/2)){
						continue;
				}else{
				printf("%ld\n", i);
						}
				}
				}
				}
		return 0;
}