#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define X first
#define Y second
#define pb push_back

ll ind = 1, t, lastind = 1;

int main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> t;
	if (t == 0) cout << "S" << endl;
	while(1) {
		cout << "R" << endl;
		while(cin >> t) {
			++ind;
			if (t == 1) {
				lastind = ind;
				cout << "S" << endl;
				break;
			}
			cout << "R" << endl;
		}
		while(ind > 1) {
			cout << "L" << endl;
			cin >> t;
			--ind;
		}
		if (t == 0) {
			cout << lastind - 1 << endl;
			return 0;
		}
	}
	return 0;
}