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 (3.4.3) (judge verdict: Wrong Answer)

a,b,k = map(int,input().split())
ls = []
ls2 = []
ls3 = []
ans = []
for i in range(a,b+1):
    ls.append(i)
    
if len(ls) < k:
    for i in ls:
        print(i)
else:
    for i in range(k):
        ans.append(ls[i])
        ls2.append(i+1)

    for i in range(1,len(ls2)+1):
        ls3.append(ls2[-i])

    for i in range(len(ls3)):
        ans.append(ls[-ls3[i]])

if k % 2 == 1:
    ans.remove(ans[round(len(ans)/2)])

for i in ans:
    print(i)