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 Lua (5.3.2) (judge verdict: Accepted)

local a, b, k = io.read("*n", "*n", "*n")
local z = {}
local t = {}
for i = a, b do
  if i < a + k then
    table.insert(t, i)
    z[i] = true
  else
    break
  end
end
for i = b, a, -1 do
  if b < i + k then
    if not z[i] then table.insert(t, i) end
  else
    break
  end
end
table.sort(t)
print(table.concat(t, "\n"))