#include <bits/stdc++.h>

using namespace std;

int main(){
    string s;
    cin >> s;
    bool flag=true;
    for(int i=0;i<s.size();i++){
        if(s[i]=='W' || s[i]=='T'){
            flag = false;
            break;
        }
    }
    if(flag){
        cout << "Done!" << endl;
    }
    else{
        cout << "Failed..." << endl;
    }
}