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#include <bits/stdc++.h>

using namespace std;

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n;
    cin >> n;
    int cnt = 0;
    for (int i = 0; i < n; ++i) {
        string s;
        int x;
        cin >> s >> x;

        if (s == "TAK" and (cnt < 10 or x < 2)) {
            cout << i + 1 << " ";
            cnt++;
        }

        if (cnt == 20) {
            break;
        }
    }
    cout << "\n";
}