#include <algorithm>
#include <iostream>
#include <vector>
#include <queue>
#include <set>
#include <map>
#include <list>
#include <cmath>
#include <stack>
#include <string>
#include <cstring>
#include <numeric>
#include <iomanip>
#include <fstream>
using namespace std;
const long long inf=1e9+7;
const long long mod=1e9+7;
const int64_t CYCLES_PER_SEC=2800000000;
//
inline uint32_t Xor128(){
	static uint32_t x=123456789;
	static uint32_t y=362436069;
	static uint32_t z=521288629;
	static uint32_t w=88675123;
	uint32_t t=x^(x<<11);
	x=y;y=z;z=w;
	return w=(w^(w>>19))^(t^(t>>8));
}
struct Timer{
	int64_t start;
	Timer(){reset();}
	void reset(){start=getcycle();}
	void plus(double a){start-=(a*CYCLES_PER_SEC);}
	inline double get(){return (double)(getcycle()-start)/CYCLES_PER_SEC;}
	inline int64_t getcycle(){
		uint32_t low,high;
		__asm__ volatile ("rdtsc":"=a"(low),"=d"(high));
		return ((int64_t)low)|((int64_t)high<<32);
	}
};
//
int main(){
	string s;
	cin>>s;
	int now=0;
	bool f=true;
	while(now<s.size()){
		if(s[now]=='A'){
			now+=3;
		}else{
			f=false;
			break;
		}
	}
	if(f){
		cout<<"Done!"<<endl;
	}else{
		cout<<"Failed..."<<endl;
	}
	return 0;
}