#define _USE_MATH_DEFINES
#include <algorithm>
#include <cstdio>
#include <functional>
#include <iostream>
#include <cfloat>
#include <climits>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <map>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <time.h>
#include <vector>
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> i_i;
typedef pair<ll, int> ll_i;
typedef pair<double, int> d_i;
typedef pair<ll, ll> ll_ll;
typedef pair<double, double> d_d;
struct edge { int u, v; ll w; };

ll MOD = 1000000007;
ll _MOD = 1000000009;
double EPS = 1e-10;

int f(int x) {
	int cnt = 0;
	for (; x; x>>=1) cnt += x&1;
	return cnt;
}

int main() {
	random_device rd;
	mt19937 mt(rd());
	for (int t = 0; t < 20000; t++) {
		cout << "FFLR"[mt() % 4] << endl;
		string s; cin >> s;
		if (s == "Merry") return 0;
	}
	for (int x = 0; ; x++) {
		cout << "FFL"[f(x) % 3] << endl;
		string s; cin >> s;
		if (s == "Merry") return 0;
	}
}