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