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#include <fstream>
#include <algorithm>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int a[1000001];
int main()
{
long long n,s,i=0,nr,ok=0;
f>>n;
s=n/2+1;
for(i=1;i<=n;i++) f>>a[i];
sort(a+1,a+n+1);
for(i=1;i<=n-1;i++)
{
nr=1;
while(a[i]==a[i+1])
{
i++;
nr++;
}
if(nr>=s) {g<<a[i]<<" "<<nr;ok=1;break;}
}
if(ok==0) g<<"-1";
return 0;
}