class JSample1_1{
  public static void main(String args[]){
    int num = 1;

    num = num * 2;
    System.out.println(num);
    num = num * 2;
    System.out.println(num);
    num = num * 2;
    System.out.println(num);
    num = num * 2;
    System.out.println(num);
  }
}