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#include <fstream>
#include <iostream>
#include <algorithm>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int v[1000001];
int main()
{
int n, nr=0, ales=-1;
f >> n;
for(int i=1; i<=n; i++)
{
f >> v[i];
if(nr==0)
ales=v[i];
if(v[i]==ales)
nr++;
else
nr--;
}
int cnt=0;
for(int i=1; i<=n; i++)
if(v[i]==ales)
cnt++;
if(cnt>=n/2+1)
g << ales << " " << cnt;
else
g << -1;
return 0;
}