What's the problem here? Thanks in advance...
package com.codegym.task.task07.task0727;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
/*
Changing functionality
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
ArrayList<String> list = new ArrayList<String>();
while (true) {
String s = reader.readLine();
if (s.isEmpty()) break;
list.add(s);
}
ArrayList<String> nlist = new ArrayList<>();
for (int i=0;i<list.size();i++) {
if (list.get(i).length()%2==0)
nlist.add(list.get(i)+" "+list.get(i));
else
nlist.add(list.get(i)+" "+list.get(i)+" "+list.get(i));
}
for (int i=0;i<list.size();i++) {
System.out.println(list.get(i));
}
}
}