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 Go (1.6) (judge verdict: Wrong Answer)

// Package main provides
//
// File:  b.go
// Author: ymiyamoto
//
// Created on Fri Dec 28 15:40:52 2018
//
package main

import "fmt"

// max ...
func max(a, b int) int {
	if a < b {
		return b
	}
	return a
}

func main() {
	var A, B, K int
	fmt.Scan(&A, &B, &K)

	for i := A; i < K; i++ {
		fmt.Println(i)
	}
	for i := max(K+A, B-K+1); i <= B; i++ {
		fmt.Println(i)
	}
}