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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int main()
{
int n;
fin>>n;
int v[100005];
for(int i=1; i<=n; i++)
fin>>v[i];
int x,nr=0;
for(int i=1; i<=n; i++)
{
if(nr==0)
{
x=v[i];
nr=1;
}
else
if(x==v[i])
nr++;
else
nr--;
}
nr=0;
for(int i=1;i<=n;i++)
{
if(x==v[i])
nr++;
}
if(nr>n/2)
fout<<x<<" "<<nr;
else
fout<<"-1";
return 0;
}