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#include <bits/stdc++.h>
using namespace std;
ifstream fin ("elmaj.in");
ofstream fout ("elmaj.out");
int v[1000005];
int main()
{
int n, nra, elmaj;
fin>>n;
for(int i=1; i<=n; i++)
{
fin>>v[i];
}
elmaj=v[1];
nra=1;
for(int i=2; i<=n; i++)
{
if(elmaj==v[i])
nra++;
else
{
nra--;
if(nra==0)
{
elmaj=v[i];
nra++;
}
}
}
nra=0;
for(int i=1; i<=n; i++)
{
if(elmaj==v[i])
nra++;
}
if(nra>=n/2+1)
fout<<elmaj<<" "<<nra;
else
fout<<"-1";
return 0;
}