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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int n, a[1000005];
int main()
{
f>>n;
int nr, ap=0, ct=0;
for(int i=1; i<=n; i++)
{
f>>a[i];
if(ap==0)
{
nr=a[i];
ap++;
}
else if(a[i]!=nr)
ap--;
else ap++;
}
for(int i=1; i<=n; i++)
if(a[i]==nr)
ct++;
if(ct>n/2)
g<<nr<<' '<<ct;
else g<<-1;
return 0;
}