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#include <iostream>
#include <bits/stdc++.h>
using namespace std;
ifstream fin ("elmaj.in");
ofstream fout ("elmaj.out");
int N,v[1000009];
int main()
{
fin>>N;
for(int i=1;i<=N;i++)
{
fin>>v[i];
}
int cand=v[1],nrap=1;
for(int i=2;i<=N;i++)
{
if(v[i]==cand)
{
nrap++;
}
else
{
nrap--;
}
if(nrap==0)
{
cand=v[i];
nrap=1;
}
}
int nr=0;
for(int i=1;i<=N;i++)
{
if(v[i]==cand)
{
nr++;
}
}
if(nr>=N/2+1)
{
fout<<cand<<' '<<nr<<'\n';
}
else
{
fout<<-1<<'\n';
}
return 0;
}