/* 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
{
	public static void main (String[] args) throws java.lang.Exception
	{
		ArrayList numbers = new ArrayList();
		numbers.add(10);
		numbers.add(20);
		numbers.add(30);
		numbers.add(40);
		numbers.add(50);
		numbers.remove(3);
		System.out.println(numbers);
	}
}

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