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#include <fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
#define N 1000005
int v[N],n,i;
int main()
{
fin>>n;
for(i=1; i<=n; i++)
fin>>v[i];
int ct=0, x=0, nr=0;
for(i=1; i<=n; i++)
{
if(ct==0){x=v[i]; ct=1;}
else
{
if(v[i]==x) ct+=1;
else ct-=1;
}
}
for(i=1; i<=n; i++)
if(v[i]==x) nr+=1;
if(nr<n/2+1)fout<<"-1";
else fout<<x<<" "<< nr;
return 0;
}