View Code of Problem 54

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		long num = scanner.nextLong();
		int index = 0;
		long temp = num;
		for(;true;) {
			if(temp == 0) {
				break;
			}else {
				index++;
				temp = temp/10;
				continue;
			}
		}
		temp = num;
		long a[] = new long[index];
		for (int i = 0; i < a.length; i++) {
			a[i] = temp%10;
			temp = temp/10;
			continue;
		}
		for (int i = a.length-1; i >= 0; i--) {
			if(i == 0) {
				System.out.print(a[i]);
			}else {
				System.out.print(a[i]+" ");
			}
			
		}
	}
}