/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	private static int n;
	private static Object nLock = new Object();
	
	public static void setN(int arg) {
		synchronized (nLock) {
			n = arg;
		}
	}
	
	public static int getN() {
		synchronized (nLock) {
			return n;
		}
	}
	public static void main (String[] args) throws java.lang.Exception
	{
		setN(1);
		System.out.println(getN());
	}
}