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#include <bits/stdc++.h>
using namespace std;

int n;

int main () {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> n;
	
	vector <int> ans;
	for (int i = 1; i <= n; i++) {
		string s; int c;
		cin >> s >> c;
		if (s != "TAK") continue;
		if ((int)ans.size() < 10 || ((int)ans.size() < 20 && c < 2))
			ans.push_back(i);
	}
	
	for (int a : ans)
		cout << a << ' ';
}