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#include <fstream>
using namespace std;
ifstream cin("elmaj.in");
ofstream cout("elmaj.out");
int v[100005];
int main()
{
int a,n,ok=0,cnt=0,can;
cin>>n;
for(int i=0;i<n;i++)
{
cin>>v[i];
}
for(int i=0;i<n;i++)
{
if(cnt==0)
{
can=v[i];
cnt=1;
}
else
{
if(can==v[i])
{
cnt++;
}
else
cnt--;
}
}
cnt=0;
for(int i=0;i<n;i++)
{
if(v[i]==can)
cnt++;
}
if(cnt>n/2)
{
cout<<can<<" "<<cnt;
}
else
{
cout<<"-1";
}
return 0;
}