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#include <fstream>
using namespace std;
int a[1000005],n;
int main()
{
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
fin>>n;
for(int i=1;i<=n;i++)
fin>>a[i];
int cand=0,k=0;
for(int i=1;i<=n;i++) {
if(k==0) {
cand=a[i];
k=1;
}
else if(a[i]==cand)
k++;
else
k--;
}
k=0;
for(int i=1;i<=n;i++)
if(a[i]==cand)
k++;
if(k>=n/2+1)
fout<<cand<<" "<<k<<'\n';
else
fout<<"-1";
return 0;
}