哲哲打游戏

#include <iostream>
#include <vector>
using namespace std;
const int N = 1e5 + 10;
vector<int> g[N];
int n, m, record[N];
int main()
{
    scanf("%d%d", &n, &m);
    for (int i = 1; i <= n; i ++)
    {
        int j;
        scanf("%d", &j);
        for (int k = 1; k <= j; k ++)
        {
            int a;
            scanf("%d", &a);
            g[i].push_back(a);
        }
    }
    int p = 1;
    for (int i = 1; i <= m; i ++)
    {
        int a, b;
        scanf("%d%d", &a, &b);
        if (a == 0)
        {
            p = g[p][b-1];
        }
        else if (a == 1)
        {
            record[b] = p;
            cout << p << endl;
        }
        else 
        {
            p = record[b];
        }
    }
    cout << p << endl;
    return 0;
}