View difference between Paste ID: Nfhmm8FX and ViV9se0b

 import java.util.Arrays;
 import java.util.List;
 import java.util.Scanner;
 import java.util.stream.Collectors;
 
 public class _09_PokemonDontGo {
     public static void main(String[] args) {
         Scanner scanner = new Scanner(System.in);
 
         List<Integer> pok = Arrays.stream(scanner.nextLine()
                 .split("\\s+")).map(Integer::parseInt)
                 .collect(Collectors.toList());
 
         int sum = 0;
 
         while (!pok.isEmpty()) {
             int ind = Integer.parseInt(scanner.nextLine());
 
             if (ind >= 0 && ind <= pok.size() - 1) {
                 int element = pok.get(ind);
                 sum += element;
                 pok.remove(ind);
                 changeListContent(pok, element);
             } else if (ind < 0) {
                 int element = pok.get(0);
                 sum += element;
                 pok.set(0, pok.get(pok.size()-1));
                 changeListContent(pok, element);
             } else {
                 int element = pok.get(pok.size()-1);
                 sum += element;
                 pok.set((pok.size()-1), pok.get(0));
                 changeListContent(pok, element);
             }
         }
         System.out.println(sum);
     }
 
     static void changeListContent(List<Integer> numbersList, int element) {
         for (int i = 0; i < numbersList.size(); i++) {
             if (numbersList.get(i) <= element){
                 numbersList.set(i, numbersList.get(i) + element);
             } else {
                 numbersList.set(i, numbersList.get(i) - element);
             }
         }
     }
 }