I don't understand why there is no output with my program. Can you help me?
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> list2 = new ArrayList<String>();
for (int i = 0; i < list2.size(); i++) {
if(list.get(i).length() % 2 == 0){
list2.add(list.get(i));
list2.add(list.get(i));
}
else {
list2.add(list.get(i));
list2.add(list.get(i));
list2.add(list.get(i));
}
}
for (int i = 0; i < list2.size(); i++) {
System.out.println(list2.get(i));
}
}
}