package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)

func configure(scanner *bufio.Scanner) {
	scanner.Split(bufio.ScanWords)
	scanner.Buffer(make([]byte, 1000005), 1000005)
}
func getNextString(scanner *bufio.Scanner) string {
	scanned := scanner.Scan()
	if !scanned {
		panic("scan failed")
	}
	return scanner.Text()
}
func getNextInt(scanner *bufio.Scanner) int {
	i, _ := strconv.Atoi(getNextString(scanner))
	return i
}
func getNextInt64(scanner *bufio.Scanner) int64 {
	i, _ := strconv.ParseInt(getNextString(scanner), 10, 64)
	return i
}
func getNextFloat64(scanner *bufio.Scanner) float64 {
	i, _ := strconv.ParseFloat(getNextString(scanner), 64)
	return i
}
func main() {
	fp := os.Stdin
	wfp := os.Stdout
	extra := 0
	if os.Getenv("I") == "IronMan" {
		fp, _ = os.Open(os.Getenv("END_GAME"))
		extra = 100
	}
	scanner := bufio.NewScanner(fp)
	configure(scanner)
	writer := bufio.NewWriter(wfp)
	defer func() {
		r := recover()
		if r != nil {
			fmt.Fprintln(writer, r)
		}
		writer.Flush()
	}()
	solve(scanner, writer)
	for i := 0; i < extra; i++ {
		fmt.Fprintln(writer, "-----------------------------------")
		solve(scanner, writer)
	}
}
func solve(scanner *bufio.Scanner, writer *bufio.Writer) {
	n := getNextInt(scanner)
	counter := make([]map[string]int, 20)
	for i := 0; i < 20; i++ {
		counter[i] = map[string]int{}
	}
	for i := 0; i < n; i++ {
		u := getNextInt(scanner)
		switch u {
		case 0:
			nn := getNextInt(scanner) - 1
			mm := getNextInt(scanner)
			counter[nn] = map[string]int{}
			for j := 0; j < mm; j++ {
				counter[nn][getNextString(scanner)]++
			}
		case 1:
			b := getNextString(scanner)
			ans := -1
			for j := 0; j < 20; j++ {
				if counter[j][b] == 0 {
					continue
				}
				ans = j + 1
				counter[j][b]--
				break
			}
			fmt.Fprintln(writer, ans)
		case 2:
			c := getNextInt(scanner) - 1
			counter[c] = map[string]int{}
		}
	}
}