#include<fstream>
#include<cstdio>
#include<set>
#include<stack>
#include<vector>
#include<algorithm>
#define FOR(a,b,c) for(int a=b;a<=c;++a)
#include<cstring>
#include<bitset>
#include<cmath>
#include<iomanip>
#include<queue>
#define f cin
#define g cout
#define mp make_pair
#define pb push_back
#define x first
#define y second
#define ll long long
#define inf (1<<30)
#define base 256
#define ba 255
#define N 1000100
#define EPS 1e-12
#define mod  98999
#define inu "elmaj.in"
#define outu "elmaj.out"
using namespace std;
ifstream f(inu);
ofstream g(outu);
//int dx[]={0,0,0,1,-1};
//int dy[]={0,1,-1,0,0};
int n,v[N],nr,cand;
int main ()
{
	f>>n;
	FOR(i,1,n)
	{
		f>>v[i];
	}
	cand=v[1];
	nr=1;
	FOR(i,2,n)
	{
		if(!nr)
		{
			cand=v[i];
			nr=1;
			continue;
		}
		if(v[i]==cand)
			nr++;
		else
			nr--;
	}
	nr=0;
	FOR(i,1,n)
	if(v[i]==cand)
		nr++;
	if(nr>=n/2+1)
		g<<cand<<" "<<nr;
	else
		g<<"-1";
    return 0;
}