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