import java.util.StringTokenizer;
 
public class Encryption {
 
 
    public static String encrypt(String password) {
        StringBuffer sb = new StringBuffer();
 
        for (int i = 0; i<password.length(); i++) {
 
            char c = password.charAt(i);
            int j = c;
            sb.append(String.valueOf(j) + " ");
        }
        return sb.toString().trim();
    }
 
 
    public static String decrypt(String encryptedPassword) {
        StringTokenizer st = new StringTokenizer(encryptedPassword, " ");
        //A StringTokenizer takes a string as input and breaks it upto tokens, seperated by " "
        StringBuffer sb = new StringBuffer();
        while (st.hasMoreTokens()) {
            int c = Integer.parseInt(st.nextToken());
            char chr = (char) c;
            sb.append(chr);
        }
        return sb.toString();
    }
}