import java.util.Scanner;
public class no932 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        final String FAILED = "Failed...";
        final String DONE = "Done!";
        String[] s = sc.next().split(",");
        boolean failedFlag = false;
        for (String tmp : s) {
            if (!tmp.equals("AC")) {
                failedFlag = true;
                break;
            }
        }
        if (failedFlag) {
            System.out.println(FAILED);
        } else {
            System.out.println(DONE);
        }
    }
}