#include<stdio.h>
#include<iostream>
#include<algorithm>
#include<vector>
#include<string>
#include<utility>
#include<map>
#include<set>
#include<queue>
#include<stack>
#include<functional>
#include<math.h>
#include<random>
#include <bitset>
#include <cassert>
#include <complex>
using namespace std;
#define N (1000000000+7)
//#define N 998244353
#define INF 1e16
typedef long long ll;
typedef pair<int,int> P;
const int inf = 1e8;



int main() {
    string s;
    cin>>s;
    string t="";
    map<string,int>mp;
    for(int i=0;i<s.length();i++){
        if(s[i]==','){
            mp[t]++;
            t="";
        }
        else t.push_back(s[i]);
    }
    mp[t]++;
    int siz = 0;
    for(auto [x,y]:mp){
        siz+=y;
    }
    if(mp["AC"]==siz)cout<<"Done!";
    else cout<<"Failed...";
    cout<<endl;
}