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#include <bits/stdc++.h>


using namespace std;
#define ll long long
#define ld long double
#define all(a) (a).begin(), (a).end()
#define allr(a) (a).rbegin(), (a).rend()
#define F first
#define S second
#define pb push_back
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

/*
#ifndef ONLINE_JUDGE
    #include <cpp-dump.hpp>
#endif
*/

constexpr ll mod = 1e9+7;

ll power(ll a, ll b){
    ll res = 1;
    while(b){
        if(b&1) res = res * a % mod;
        a = a * a % mod;
        b >>= 1;
    }
    return res;
}

/*
ll fact[300001];
ll C(ll n, ll k){
    if(k < 0 || k > n) return 0;
    return fact[n] * power(fact[k], mod-2) % mod * power(fact[n-k], mod-2) % mod;
}
*/

void dzik77() {
    
    int n; cin >> n;
    vector<int> ans;
    int cnt = 1;
    while(n--){

        string s; int x; cin >> s >> x;
        if(s == "TAK"){
            if(ans.size() == 20) continue;
            if(ans.size() < 10 || x < 2){
                ans.pb(cnt);
            }
        }

        cnt++;
    }
    for (auto &x : ans){
        cout << x << ' ';
    }

}

int32_t main()
{

    ios::sync_with_stdio(0);
    cin.tie(0);

    /*
    fact[0] = 1;
    for (int i = 1; i < 300001; i++){
        fact[i] = fact[i-1] * i % mod;
    }
    */

    int t = 1;
    //cin >> t;
    while(t--)
		dzik77();

    return 0;
}