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: Time Limit Exceeded)

a,b,k=map(int,input().split())
l=[]
ll=[]
for i in range(a,b+1):
    l.append(i)
i=0
j=0
while True:
    print(l[0])
    l.pop(0)
    j+=1
    if len(l)==0 or j==k:
        break
while True:   
    if len(l)==0 or i==k:
        break    
    ll.append(l[-1])
    l.pop()
    i+=1
ll.sort()
for i in range(len(ll)):
    print(ll[i])