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#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int n,x,c,i,a[1000001];
int main()
{
f>>n;
for(i=1;i<=n;i++)
f>>a[i];
x=0;
c=0;
for(i=1;i<=n;i++)
{
if(c==0)
{
c++;
x=a[i];
}
else
if(c!=0)
{
if(x==a[i])c++;
else
c--;
}
}
c=0;
for(i=1;i<=n;i++)
if(x==a[i])c++;
if(c>n/2)
g<<x<<" "<<c<<"\n";
else
g<<-1<<"\n";
return 0;
}