What's wrong?
package de.codegym.task.task07.task0714;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
/*
Wörter umkehren
*/
public class Solution {
public static void main(String[] args) throws Exception {
ArrayList<String> list = new ArrayList<String>();
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
while(true){
String s = reader.readLine();
if(s.isEmpty()) break;
list.add(s);
}
list.remove(2);
for(int i = list.size()-1;i>=0;i--){
System.out.println(list.get(i));
}
}
}