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#include <iostream>
#include <string>
using namespace std;

int main() {
  int n;
  cin >> n;
  int counter = 0;
  for (int i = 1 ; i <= n; i++) {
    string s;
    int x;
    cin >> s >> x;
    if(s != "TAK")
      continue;
    if(counter < 10 || x < 2) {
      cout << i;
      counter++;
      if(counter == 20) {
    	cout << endl;
    	return 0;
      }
      cout << " ";
    }

  }
  
  return 0;
}