public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
String a = bufferedReader.readLine();
if (a>0)
System.out.println(a*2);
else if (a<0)
System.out.println(a+1);
else
System.out.println(0);
}
}
package com.codegym.task.task04.task0412;
/*
Positive and negative numbers
*/
import java.io.*;
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
String a = bufferedReader.readLine();
if (a>0)
System.out.println(a*2);
else if (a<0)
System.out.println(a+1);
else
System.out.println(0);
}
}