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#include<fstream>
using namespace std;
ifstream fi("elmaj.in");
ofstream fo("elmaj.out");
const int max_n = 1000006;
int i,n,nr,cand_maj,a[max_n];
int main(){
fi>>n;
for(i=1;i<=n;i++) fi>>a[i];
nr=0;
for(i=1;i<=n;i++)
if(nr==0){ cand_maj=a[i]; nr=1; }
else if(a[i]==cand_maj) nr++;
else nr--;
nr=0;
for(i=1;i<=n;i++)
if(a[i]==cand_maj) nr++;
if(nr<(n/2)+1) fo<<"-1";
else fo<<cand_maj<<" "<<nr;
fi.close();
fo.close();
return 0;
}