#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */

    int n,p,i,j,c;
    vector<int>  k(300000), ii(100000), ji(100000);
    vector<vector<int>> a(100000,vector<int> (300000));

    printf("Input n,p \n");
    scanf("%d%d", &n, &p);

    printf("Input querries:\n");
    for(int i = 0; i < n; i++)  {
        scanf("%d", &k[i]);
        for(int j = 0; j < k[i]; j++)   {
            scanf("%d", &a[i][j]);
        }
    }

    printf("Qurries input\n");
    for(int c = 0; c < p; c++)  {
        scanf("%d", &ii[c]);
        scanf("%d", &ji[c]);
    }

    //Print
    for(int i = 0; i < p; i++)  {
        printf("%d\n",a[ii[p]][ji[p]]);
    }

    return 0;
}