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#include <bits/stdc++.h>


using namespace std;


int main() {
    ios_base::sync_with_stdio(false);

    int n;
    cin >> n;

    int numQualified = 0;
    for (int i = 1; i <= n; i++) {
        string s;
        int numFinals;

        cin >> s >> numFinals;
        if (s == "TAK") {
            bool qualified;
            if (numQualified >= 20) {
                qualified = false;
            } else if (numFinals <= 1) {
                qualified = true;
            } else {
                qualified = numQualified < 10;
            }

            if (qualified) {
                numQualified++;
                cout << i << ' ';
            }
        }
    }

    return 0;
}