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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int n,v[100001],i,ok=1,fr[10000001],x;
int main()
{
fin>>n;
for(i=1;i<=n;i++)
fin>>v[i];
for(i=1;i<=n;i++) fr[v[i]]++;
for(i=1; i<=n; i++)
{ if(fr[v[i]]>n/2)
{ x=v[i];
ok=0; } }
if(ok==0) fout<<x<<" "<<fr[x];
else fout<<"-1";
return 0;
}