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#include<fstream>
using namespace std;
ifstream in("elmaj.in");
ofstream out("elmaj.out");
int v[1000001];
int main()
{
int i,a,n,s,nr;
in>>n;
for(i=1;i<=n;i++)
in>>v[i];
s=v[1];
nr=1;
for(i=2;i<=n;i++)
{
if(v[i]==s)
nr++;
else
{
nr--;
if(nr==0)
{
s=v[i];
nr=1;
}
}
}
nr=0;
for(i=1;i<=n;i++)
{
if(v[i]==s)
nr++;
}
if(nr>n/2)
out<<s<<" "<<nr;
else
out<<"-1";
}