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// Homura Akemi a.k.a. Starrykiller (/user/235125)
// I love Madoka Kaname forever! 
#include <bits/stdc++.h>

using namespace std;

auto range(auto l, auto r) { return views::iota(l,r); }
auto rev=views::reverse;

_GLIBCXX_ALWAYS_INLINE void chmax(auto &a, auto b) { a=max(a,b); }
_GLIBCXX_ALWAYS_INLINE void chmin(auto &a, auto b) { a=min(a,b); }
// #define int long long

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);
// int T; cin>>T;
int T=1;
while (T--) []{
    int n; cin>>n;
    vector<int> a(n), b;
    for (int i=0; i<n; ++i) {
        string s; cin>>s>>a[i];
        if (s=="NIE") continue;
        if (s=="TAK") {
            if (a[i]<2 || size(b)<10u)
                b.emplace_back(i);
        }
    }
    for (int i=0; i<20; ++i) cout<<b[i]+1<<' ';
}();
}