#include<fstream>
using namespace std;

ifstream fin("elmaj.in");
ofstream fout("elmaj.out");

int main()
{
    int n,nCopy;
    int i=1,j,x;
    int elMaj,cntAppearance=0;
    fin>>n;
    while(i<=n/2+1)
    {
        for(j=1;j<=i;j++)
            fin>>elMaj;
        ifstream fin("elmaj.in");
        fin>>nCopy;
        for(j=1;j<=nCopy;j++)
        {
            fin>>x;
            if(x==elMaj)
                cntAppearance++;
        }
        if(cntAppearance>=n/2+1)
        {
            fout<<elMaj<<" "<<cntAppearance;
            return 0;
        }
        i++;
    }
    fout<<-1;
    return 0;
}