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#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int a[1000003],c,i,n,x;
int main()
{
f>>n;
for(i=1;i<=n;i++)
f>>a[i];
c=0;
for(i=1;i<=n;i++)
{
if(c==0)
{
x=a[i];
c++;
}
else
if (x==a[i]) c++;
else c--;
}
c=0;
for (i=1;i<=n;i++)
if(a[i]==x) c++;
if (c>=n/2+1) g<<x<<" "<<c<<endl;
else
g<<-1<<endl;
return 0;
}