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#include<fstream>
using namespace std;
int n,a[1000002],i,q,c,b[1000002];
int main()
{
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
fin>>n;
for(i=1;i<=n;i++)
{
fin>>a[i];
}
c=1;
q=a[1];
b[1]++;
for(i=2;i<=n;i++)
{
b[a[i]]++;
if(a[i]==q)
{
c++;
}
else
c--;
if(c==0)
{
q=a[i+1];
b[a[i+1]]++;
i++;
c=1;
}
}
if(b[q]>n/2)
{
fout<<q<<" "<<b[q];
}
else fout<<"-1";
fin.close();
fout.close();
return 0;
}