#include <iostream>
#include <string>
using namespace std;
int main(){
    string s;
    cin >> s;
    if (s=="AC"){
        cout << "Done!" <<endl;
        return 0;
    }
    if (s=="WA"){
        cout << "Failed..." << endl;
        return 0;
    }
    if (s.size()==3){
        cout << "Failed..." << endl;
        return 0;
    }
    for (int i=0; i<s.size()-3;i=i+3){
        if (s.at(i)!=s.at(i+3)) {
            cout << "Failed..." << endl;
            return 0;
        }
    }
    cout << "Done!" << endl;
    return 0;
}