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#include <fstream>
using namespace std;
ifstream cin("elmaj.in");
ofstream cout("elmaj.out");
int n,i,a[1000001],em,na;
int main()
{
cin>>n;
for(i=1;i<=n;i++){
cin>>a[i];
}
em=a[1];
na=1;
for(i=2;i<=n;i++){
if(a[i]!=em)na--;
else if(a[i]==em)na++;
if(na==0)em=a[i],na=1;
}
na=0;
for(i=1;i<=n;i++){
if(a[i]==em)na++;
}
if(na>=n/2+1){
cout<<em<<' '<<na;
}
else cout<<"-1";
return 0;
}