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#include <algorithm>
#include <bitset>
#include <iostream>
#include <list>
#include <map>
#include <queue>
#include <set>
#include <string>
#include <vector>

using namespace std;

#define PB push_back
#define MP make_pair
#define F first
#define S second
#define ALL(x) (x).begin(),(x).end()
#define SIZE(x) (int)(x).size()
#define CLEAR(tab) memset(tab, 0, sizeof(tab))
#define REP(x, n) for(int x = 0; x < (n); x++)
#define FOR(x, b, e) for(int x = (b); x <= (e); x++)
#define FORD(x, b, e) for(int x = (b); x >= (e); x--)
#define VAR(v, n) __typeof(n) v = (n)
#define FOREACH(i, c) for(VAR(i, (c).begin()); i != (c).end(); ++i)
#define DEBUG(fmt, ...) fprintf(stderr, fmt, ##__VA_ARGS__)

typedef long long int LL;
typedef pair<int,int> PII;
typedef vector<int> VI;

const int MXN = 410;
const int C = 262144;
const int INF = 1000000001;
const int MOD = 1000000007;

int n;
void test() {
    cin>>n;
    string str;
    int x;
    int cnt = 0;
    vector<PII> zaw;
    FOR(i, 1, n) {
        cin>>str;
        cin>>x;
        if(str == "TAK")
            zaw.PB({i, x});
    }
    FOR(i, 0, SIZE(zaw)) {
        if(i < 10) {
            cout<<zaw[i].F<<" ";
            cnt++;
        }
        else if(cnt < 20 && zaw[i].S < 2) {
            cout<<zaw[i].F<<" ";
            cnt++;
        }
    }
}

int main() {
	int te = 1;
	//scanf("%d", &te);
	while(te--)
		test();
	return 0;
}