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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int n;
long long v[1000000];
void citire()
{
f>>n;
for(int i=0;i<n;i++)
f>>v[i];
}
int main()
{
citire();
int el=-1,nr=0;
for(int i=0;i<n;i++)
{
if(nr==0)
{
el=v[i];
nr++;
}
else
if(v[i]==el)
nr++;
else
nr--;
}
if(el<0)
g<<-1;
nr=0;
for(int i=0;i<n;i++)
if(v[i]==el)
nr++;
if(nr>n/2)
g<<el<<" "<<nr;
else
g<<-1;
return 0;
}