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#include <fstream>
#include <algorithm>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int n,i,vmax,imax,a[1001000],nr,stiva_v,stiva_nr;
int main()
{
fin >> n;
fin >> a[1];
stiva_v = a[1];
stiva_nr = 1;
for(i = 2; i <= n; i ++)
{
fin >> a[i];
if(a[i] == stiva_v)
stiva_nr ++;
else
{
stiva_nr --;
if(stiva_nr == 0)
{
stiva_nr = 1;
stiva_v = a[i];
}
}
}
for(i = 1; i <= n; i ++)
if(a[i] == stiva_v)
nr ++;
if(nr >= n/2 + 1)
fout << stiva_v << " " << nr;
else
fout << -1;
return 0;
}