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 Python (3.8.2) (judge verdict: Time Limit Exceeded)

a, b, k = map(int, input().split())
lis = [x for x in range(a, b+1)]
lis2 = []

if k >= len(lis):
  for i in lis:
    print(i)
else:
  lis3 = lis[:k]
  lis4 = lis[len(lis)-k:]
  lis2_set = set(lis3+lis4)
  lis2_set_sort = sorted(lis2_set)
  for i in lis2_set_sort:
    print(i)