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// #include <bits/stdc++.h>
#define FAST ios_base::sync_with_stdio(false), cin.tie(0), cout.tie(0);
#include <iostream>
#include <vector>
using namespace std;
int gcd(int a, int b) { return b ? gcd(b, a % b) : a; }

int main()
{
    FAST int n;
    cin >> n;
    string tmpS;
    int tmpI;
    int already = 0;
    for (int i = 0; i < n; i++)
    {
        cin >> tmpS >> tmpI;
        if (tmpS == "TAK")
        {
            if (already >= 10 && tmpI >= 2)
            {
                continue;
            }
            if (already >= 20)
            {
                break;
            }
            cout << i + 1 << " ";
            already++;
        }
    }
}