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#include <stdio.h>
#include <time.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <map> 
#include <string>
#include <vector>  
#include <iostream> 
#include <sstream> 
#include <queue>
#include <algorithm>
#include <assert.h>


using namespace std;

#define ll long long
#define PB 		push_back
#define FOR(a,start,end) 	for(int a=int(start); a<int(end); a++)
#define INF 		INT_MAX
#define SORT(a) 	sort(a.begin(),a.end()) 
#define CL(a,x) 		memset(a,x,sizeof(a))
#define REP(a,x)	for(int a=0;a<x;a++)
#define REP1(a,x)	for(int a=1;a<=x;a++)
#define MP 		make_pair



typedef vector<ll>     vi;
typedef pair<ll, ll>     pii;
typedef vector<string> vs;
typedef vector<pii> vii;
typedef vector<vector<ll> > vvi;
typedef vector<vector<string> > vvs;
typedef vector<pair<string, string> > vss;
typedef pair<string, string> pss;
typedef pair<ll, pii> ppii;
typedef vector<ppii> vppii;
typedef vector<vector<pii> > vvii;
typedef vector<vvi> vvvi;


ll  n, k, q, d, r, g, b, z, p, a, c, m;

vi vk, va, vb;
vvi vva, vvb, vvd, vva0;
vii vax;
vvii vvqx;
vs vw;
string w;
vi vmb;

int main() {
	//freopen("c:\\wojtek\\uva\\pa\\debug\\t1.in", "rt", stdin);
	//freopen("c:\\cygwin64\\home\\plwokow\\.check_sol\\zb1\\in\\238.in", "rt", stdin);
	//d = 1000000007;
	std::ios_base::sync_with_stdio(false);
	std::cin.tie(NULL);
	//	while (1) {
	cin >> n;
	vw.clear(); vk.clear();
	for (int i = 0; i < n; i++) {
		cin >> w >> a;
		vw.push_back(w);
		vk.push_back(a);

	}
	//
	va.clear();
	for (int i = 0; i < n; i++) {
		if (vw[i].compare("TAK") == 0) {
			if ((int)va.size() < 10)
				va.push_back(i+1);
			else if (vk[i] < 2)
				va.push_back(i+1);
		}
		if ((int)va.size() == 20)
			break;
	}

	for (int i = 0; i < 20; i++) {
		cout << va[i] << " ";
	}
	cout << '\n';
	//}

	return 0;

}