сабж.
package com.javarush.task.task07.task0713;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
/*
Играем в Jолушку
*/
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
ArrayList<Integer> list = new ArrayList<>();
ArrayList<Integer> list3 = new ArrayList<>();
ArrayList<Integer> list2 = new ArrayList<>();
ArrayList<Integer> list1 = new ArrayList<>();
for (int i = 0; i < 20; i++) {
int x = Integer.parseInt(reader.readLine());
list.add(x);
}
for (int i = 0; i < 20; i++ ) {
if( (list.get(i) % 2 == 0 && list.get(i) % 3 == 0) ){
list3.add(list.get(i));
list2.add(list.get(i));
}
else if (list.get(i) % 3 == 0){
list3.add(list.get(i));
}
else if (list.get(i)%2 == 0){
list2.add(list.get(i));
}
else {
list1.add(list.get(i));
}
}
list.addAll(list3);
list.addAll(list2);
list.addAll(list1);
printList(list);
printList(list3);
printList(list2);
printList(list1);
}
public static void printList(List<Integer> list) {
for (Integer i : list){
System.out.println(list.get(i));
}
}
}