import java.util.*;

public class Main {
	public static void main (String[] args) {
    	Scanner sc = new Scanner(System.in);
    	int n = sc.nextInt();
    	Customer[] customers = new Customer[20];
    	StringBuilder sb = new StringBuilder();
    	for (int i = 0; i < n; i++) {
    	    int type = sc.nextInt();
    	    if (type == 1) {
    	        boolean eated = false;
    	        String sushi = sc.next();
    	        for (int j = 0; j < 20; j++) {
    	            if (customers[j] != null && customers[j].hasEat(sushi)) {
    	                sb.append(j + 1).append("\n");
    	                eated = true;
    	                break;
    	            }
    	        }
    	        if (!eated) {
    	            sb.append(-1).append("\n");
    	        }
    	    } else if (type == 0) {
    	        int idx = sc.nextInt() - 1;
    	        customers[idx] = new Customer();
    	        int count = sc.nextInt();
    	        for (int j = 0; j < count; j++) {
    	            customers[idx].add(sc.next());
    	        }
    	    } else {
    	        customers[sc.nextInt() - 1] = null;
    	    }
    	}
        System.out.print(sb);
	}
	
	static class Customer {
	    HashMap<String, Integer> map = new HashMap<>();
	    
	    public void add(String sushi) {
	        map.put(sushi, map.getOrDefault(sushi, 0) + 1);
	    }
	    
	    public boolean hasEat(String sushi) {
	        if (map.containsKey(sushi)) {
	            if (map.get(sushi) == 1) {
	                map.remove(sushi);
	            } else {
	                map.put(sushi, map.get(sushi) - 1);
	            }
	            return true;
	        } else {
	            return false;
	        }
	    }
	}
}