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#include <bits/stdc++.h>


#define ll long long
#define ve vector
#define fi first
#define se second
#define ld long double
#define all(x) x.begin(), x.end()

using namespace std;

typedef pair<int, int> pii;

void solve(){
    int n;
    cin >> n;
    ve<int> res;
    for(int i = 0; i < n; i++){
        string st;
        int x;
        cin >> st >> x;
        if(res.size() < 20 && st == "TAK" && (res.size() < 10 || x < 2))
            res.push_back(i + 1);
    }
    for(auto& i : res)
        cout << i << " ";
}


signed main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    int T= 1;
//    cin >> T;
    while(T--)
        solve();
}