/* 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
{
 
	static class Foo implements Runnable
	{
		int n;
		Foo(int n) { this.n = n; }
		public void run() {
			try {
				Thread.sleep(20);
				System.out.println(n);
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}
 
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		for (int i = 0; i < 100; i++) {
			Thread t = new Thread(new Foo(i));
			t.start();
		}
	}
}

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