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#define debug 0

#include <bits/stdc++.h>

#define fastio() ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define perf  1
#define st first
#define nd second
#define remin(a,b) a=min(a,b);
#define remax(a,b) a=max(a,b);
#define mod 998244353
//#define mod 1'000'000'007


using namespace std;

void solve() {
	int n;
	cin >> n;
	vector<int> v;
	for (int i = 0; i < n; ++i) {
		int x;
		string s;
		cin >> s >> x;
		if (s == "TAK") {
			if (v.size() < 20) {
				if (v.size() < 10) {
					v.emplace_back(i+1);
				} else if (x < 2) {
					v.emplace_back(i+1);
				}
			}
		}
	}
	for (int i : v) cout << i << ' ';
	cout << '\n';
}

int main() {
	fastio();
	int t=1;
	//cin >> t;

	while (t--) {
		solve();
	}
	return 0;
}