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#include<fstream>
using namespace std;
ifstream f ("elmaj.in");
ofstream g ("elmaj.out");
int a[1000100],n,val,k;
int main()
{
f>>n;
f>>a[1];
val=a[1];
k=1;
for(int i=2;i<=n;++i){
f>>a[i];
if(a[i]==val)++k;
else{
if(k==0) val=a[i];
else --k;
}
}
k=0;
for(int i=1;i<=n;++i){
if(a[i]==val)++k;
}
if(k<n/2+1) g<<-1<<'\n';
else g<<val<<" "<<k;
return 0;
}