import java.util.*;
import java.lang.*;
import java.io.*;

class Ideone {
  public static void main (String[] args) {
    Arrays.stream(digitize(312123991239L)).forEach(System.out::print);
  }
	
  static int[] digitize(long l) {
    String value = String.valueOf(l);
    int[] array = new int[value.length()];

    for (int i = value.length() - 1, j = 0; i >= 0; i--, j++) {
      array[j] = Integer.parseInt(Character.toString(value.charAt(i)));
    }

    return array;
  }
}