/**
* Created by LXF on 2017/8/15.
*/
public class ReverseContence {
public static void main(String[] args) {
// Scanner scanner = new Scanner(System.in);
// String s = scanner.nextLine();
String s = "";
for (int i = 0; i < s.length(); i++) {
char temp = s.charAt(i);
if (!Character.isLetter(temp)) {
s = s.replace(temp, ' ');
}
}
String[] str = s.split(" ");
for (int i = str.length-1; i >=0 ; i--) {
if (!str[i].trim().equals("")) {
System.out.print(str[i].trim()+((i==0)?"":" "));
}
}
}
}