#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cstdio>
#include <cstring>
#include <cmath>
using namespace std;
using ll = long long;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);

    int q;
    cin >> q;

    char c[20][10][18];
    int p[20] = {};

    for (int i = 0; i < q; i++) {
        int t;
        cin >> t;

        if (t == 0) {
            int n, m;
            cin >> n >> m;
            n--;
            for (int j = 0; j < m; j++) {
                cin >> c[n][j];
            }
            p[n] = m;

        } else if (t == 1) {
            char s[18];
            cin >> s;
            int r = -1;
            for (int i = 0; i < 20; i++) {
                int m = p[i];
                for (int j = 0; j < m; j++) {
                    if (strcmp(s, c[i][j]) == 0) {
                        c[i][j][0] = 0;
                        r = i + 1;
                        break;
                    }
                }
                if (r >= 0) break;
            }
            cout << r << '\n';

        } else {
            int n;
            cin >> n;
            n--;
            p[n] = 0;
        }
    }

    return 0;
}