View Code of Problem 77

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        String str = sc.next();
            for (int i = 0; i < str.length(); i++) {
                System.out.print(str.charAt(i));
                if(i != str.length() - 1) {
                    System.out.print(" ");
                }
        }
    }
}