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#include <bits/stdc++.h>
#define int long long
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int n,cnt,nr;
int a[1000005];
signed main()
{
fin >> n;
for(i=1;i<=n;i++)fin>>a[i];
for(i=1;i<=n;i++)
{
if(cnt==0)
{
nr=a[i];
cnt++;
}
else
{
if(nr==a[i])
cnt++;
else
cnt--;
}
}
cnt=0;
for(i=1;i<=n;i++)
if(a[i]==nr)cnt++;
if(cnt<(n/2)+1)
cout << -1;
else
cout << nr << " " << cnt;
return 0;
}