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#include <fstream>
using namespace std;
ifstream cin("elmaj.in");
ofstream cout("elmaj.out");
int v[1000001];
int main()
{
int n,nr,candidat;
cin >>n;
cin >>v[0];
candidat=v[0];
nr=1;
for(int i=1; i<n; i++)
{
cin>>v[i];
if(v[i]==candidat)
{
nr++;
}
else
{
nr--;
}
if(nr==0)
{
candidat=v[i];
nr=1;
}
}
nr=0;
for(int j=0;j<n;j++)
{
if(candidat==v[j])
nr++;
}
if(nr>=n/2+1)
{
cout<<candidat<<" "<<nr;
}
else cout<<-1;
return 0;
}