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 Ruby (2.7.1) (judge verdict: Accepted)

a,b,k=gets.split.map(&:to_i)

if (b-a)<k
    a.upto(b) do |i|
        puts i
    end
    return
end

a.upto(a+k-1) do |i|
    if 
    puts i
    end
end

if (a+k-1)<(b-k+1)
    (b-k+1).upto(b) do |i|
        puts i
    end
else
    (a+k).upto(b) do |i|
        puts i
    end
end