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#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
long long v[1000000], n, maxi=-1999, mat[1000000];
int i, k=0;
int main()
{
f>>n;
for(i=1;i<=n;++i)
{
f>>v[i];
mat[v[i]]++;
}
for(i=1;i<=n;i++)
if(mat[i]>maxi) maxi=i;
for(i=1;i<=n;i++)
if(v[i]==maxi) k++;
if(k>=n/2+1)
g<<maxi<<" "<<k;
else g<<-1;
return 0;
}