import java.util.Scanner;


public class _02_GenerateThreeLetterWords {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        String input = sc.nextLine();

        System.out.println(generateWords(input));

    }

    private static String generateWords(String input) {

        String result = "";
        char[] inputElements = input.toCharArray();
        for (int i = 0; i < inputElements.length; i++) {
            for (int j = 0; j < inputElements.length; j++) {
                for (int k = 0; k < inputElements.length; k++) {
                    result += inputElements[i] + "" + inputElements[j] + "" + inputElements[k] + " ";
                }
            }
        }
        return result;
    }

}