/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.stream.Collectors;
 
/* 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
	{
		LinkedList<Integer> list = new LinkedList(Arrays.asList(1,2,3,4,5));
 
		System.out.println(list.stream().map(Object::toString).collect(Collectors.joining(",")));
		System.out.println(String.join(",", list.stream().map(String::valueOf).collect(Collectors.toList())));
	}
}

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