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#include <fstream>
#include <algorithm>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int n,j, v[1000000], elem, nre, nre2, ok;
int count(int i)
{
int nr=1;
for(j=i;j<=n;j++)
{
if(v[j]==v[j+1])
{
nr++;
}
else break;
}
return nr;
}
int main()
{
fin>>n;
for(int i=1;i<=n;i++)
{
fin>>v[i];
}
sort(v+1, v+n+1);
ok=0;
nre=count(1);
elem=v[1];
while(j<=n)
{
nre2=count(j+1);
if(nre<nre2)
{
nre=nre2;
elem=v[j];
ok=0;
}
else if(nre==nre2)
{
ok=1;
}
}
if(ok==1)
fout<<"-1";
else
fout<<elem<<' '<<nre;
fin.close();
fout.close();
return 0;
}