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

#ifdef LOCAL
#include "debug.hpp"
#else
#define debug(...) 13.09
#endif

using i32 = int;
using u32 = unsigned int;
using i64 = long long;
using u64 = unsigned long long;

#define sz(x) (static_cast<int>((x).size()))
using vi = vector<int>;

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

  int n; cin >> n;
  int cnt = 0;

  for (int i = 1; i <= n; i++) {
    string s; int x;
    cin >> s >> x;
    
    if (s == "TAK" && (cnt < 10 || (cnt < 20 && x < 2))) {
      cout << i << ' ';
      cnt++;
    }
  }
  cout << '\n';
}