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#pragma GCC optimize ("O3")
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define rep(i, a, b) for (int i = (a); i <= (b); i++)
#define per(i, a, b) for (int i = (b); i >= (a); i--)
#define SZ(x) ((int)x.size())
#define all(x) x.begin(), x.end()
#define pb push_back
#define mp make_pair
#define st first
#define nd second
using ll = long long;
using lf = long double;
using pii = pair <int,int>;
using pll = pair<ll, ll>;
auto& operator<<(auto& o, pair<auto, auto> p) {
    return o << "(" << p.first << ", " << p.second << ")";
}
auto operator<<(auto& o, auto x)->decltype(end(x), o) {
    o << "{"; int i = 0; for (auto e: x) o << ", " + 2*!i++ << e;
    return o << "}";
}
#define dbg(x...) cerr<<"["#x"]: ", [](auto...$) {((cerr << $ << "; "),...)<<endl;}(x)

int32_t main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n; cin >> n;
    int ile = 0;
    rep(i,1,n){
        string s; cin >> s;
        int k; cin >> k;
        if(s == "TAK"){
            if(ile < 10){
                cout << i << " ";
                ile++;
            }else if(ile < 20 && k < 2){
                cout << i << " ";
                ile++;
            }
        }
    }
    cout << "\n";
}