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#include <bits/stdc++.h>

int main() {
  std::ios_base::sync_with_stdio(0); std::cin.tie(NULL);
  int n;
  std::cin >> n;
  
  int cnt = 0;

  for (int i = 1; i <= n; i++) {
    std::string s; int x;
    std::cin >> s >> x;

    if (cnt >= 20 || s != "TAK") continue;
    else if (cnt < 10 || x <= 1) {
      std::cout << i << " ";
      cnt++;
    } 
  }

  std::cout << "\n";
}