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#include <iostream>
#include <fstream>
using namespace std;
int v[1000002], n, i, nr, elem;
int main()
{
ifstream cin("elmaj.in");
ofstream cout("elmaj.out");
cin>>n;
for(i=1; i<=n; i++)
cin>>v[i];
elem=v[1];nr=1;
for(i=2; i<=n; i++)
if(v[i]==elem)nr++;
else
{
nr--;
if(nr==0&&i<n)elem=v[i+1];
}
nr=0;
for(i=1; i<=n; i++)
if(elem==v[i])nr++;
if(nr>=n/2+1)
cout<<elem<<' '<<nr<<'\n';
else cout<<-1<<'\n';
return 0;
}