#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cctype>
#include <cmath>
#include <string>
#include <algorithm>
#include <vector>
#include <queue>
#include <deque>
#include <set>
#include <stack>
#include <cassert>
using namespace std;

#define PRO "elmaj"
void OpenFiles(int EVAL)
{
	if(EVAL)
	{
		char input[100] = PRO, output[100] = PRO;
		freopen(strcat(input, ".in"),"r",stdin);
		freopen(strcat(output,".out"),"w",stdout);
	} else
	{
		freopen("test.in","r",stdin);
		//freopen("test.out","w",stdout);
	}
}

#define MAX  1000001
#define INF 0xffffff

int a[MAX];

int main(int argv,char *args[])
{
	OpenFiles(argv==0);
	// start
	int n,nr,el;
		scanf("%d",&n);
		for(int i=1;i<=n;i++)scanf("%d",&a[i]);
		el = a[1];
		nr = 1;
		for(int i=2;i<=n;i++)
			if(a[i]==el)nr++; else
			{
				nr--;
				if(nr<0)
				{
					el = a[i];
					nr = 1;
				}
			}
		nr = 0;
		for(int i=1;i<=n;i++)
			if(a[i]==el)nr++;
		if(nr > n/2)printf("%d %d\n",el,nr); else printf("-1\n");
	return 0;
}