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#include <bits/stdc++.h>
#define N 1000000
using namespace std;
ifstream fin ( "elmaj.in" );
ofstream fout ( "elmaj.out" );
int a[N],n;
void citire()
{
fin>>n;
for(int i=1; i<=n; i++)
fin>>a[i];
}
void aparitie()
{
int i,e,ap;
e=a[1];
ap=1;
for(i=2; i<=n; i++)
if(a[i]!=e&&ap>=1)
ap--;
else if(ap==0)
{
e=a[i];
ap=1;
}
else ap++;
ap=0;
for(i=1; i<=n; i++)
if(e==a[i])
ap++;
if(ap>=n/2+1)
fout<<e<<" "<<ap;
else fout<<-1;
}
int main( )
{
citire();
aparitie();
return 0;
}