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

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int n; cin >> n;
    vector<int> users;
    for (int i = 1; i <= n; ++i) {
        string a;
        int b; cin >> a >> b;
        if (a == "TAK") {
            if (users.size() < 10) users.push_back(i);  
            else if (b < 2 && users.size() < 20) users.push_back(i);  
        }
    }
    for (int i = 0; i < users.size(); ++i) cout << users[i] << " ";
}