#include <iostream>

using namespace std;

int main() {
	int n;
	cin >> n;

	int l, w;
	long long int money, bet, x;
	money = 1LL << (2*n);
	x = money;
	bet = money / 2;
	l = 0;
	w = 0;
	

	while (l != n && w!=n) {
		if (w == n-1) {
			cout << 2 * x - money << '\n';
		}
		else {
			cout << bet << '\n';
			string res;
			cin >> res;

			if (res == "Won") {
				money += bet / 2;
				bet /= 2;
			}
			else {
				money -= bet;
				bet *= 2;
			}
		}
	}
	cout << money;
}