class HelloWorld { public static void main(String[] args) { Scanner in = new Scanner(System.in); List<Integer> list = new ArrayList<>(); while (in.hasNext()) { int i = in.nextInt(); if (i==0) { break; } int j =i/3; int y =i%3; int s = 0; int all = j; while (j!=0) { s = j+y; j=s/3; y=s%3;...