View Code of Problem 54

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        String s = String.valueOf(n);
        int i = 0;
        for (;i<s.length()-1;i++){
            System.out.print(s.charAt(i)+" ");
        }
        System.out.print(s.charAt(i));

    }
}