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#include <fstream>
#include <cstdio>
#include <iomanip>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int n, i, ap[1000001];
long long x, maj;
int main()
{
// freopen("ssm.in", "r", stdin);
// freopen("ssm.out", "w", stdout);
// scanf("%d", &n);
fin >> n;
for(i=1; i<=n; i++)
{
fin >> x;
ap[x]++;
if(ap[x]>ap[maj])
maj=x;
}
if(ap[maj]>n/2)
fout << maj << " " << ap[maj];
else
fout << -1;
// fclose(stdin);
// fclose(stdout);
return 0;
}