import java.util.*;
public class Main {
static Map<String, String> phone = new HashMap<String, String>() {{
put(“0”,"");
put(“1”,".+@$");
put(“2”, “abc”);
put(“3”, “def”);
put(“4”, “ghi”);
put(“5”, “jkl”);
put(“6”, “mno”);
put(“7”, “pqrs”);
put(“8”, “tuv”);
put(“9”, “wxyz”);
}};
static ArrayList<String> output = new ArrayList<String>();
public static void backtrack(String combination, String next_digits) {
if (next_digits.length() == 0) {
output.add(combination);
}
else{
String digit = next_digits.substring(0, 1);
String letters = phone.get(digit);
for (int i = 0; i < letters.length(); i++) {
String letter = phone.get(digit).substring(i, i + 1);
backtrack(combination + letter, next_digits.substring(1));
}
}
}
public static ArrayList<String> letterCombinations(String digits) {
if (digits.length() != 0)
backtrack("", digits);
return output;
}
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
String str=sc.nextLine();
for(String a:letterCombinations(str)) {
System.out.println(a);
}
}
}