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#include <fstream>
using namespace std;
ifstream in("elmaj.in");
ofstream out("elmaj.out");
const int NMAX=1e6;
int v[NMAX +5];
int main()
{
int n,i,maj,cnt=0;
in>>n;
for(i=1; i<=n; i++)
{
in>>v[i];
}
maj=v[1];
for(i=1; i<=n; i++)
{
if(maj==v[i])
{
cnt++;
}
else
cnt--;
if(cnt==0)
{
maj=v[i];
cnt++;
}
}
cnt=0;
for(i=1; i<=n; i++)
{
if(v[i]==maj)
{
cnt++;
}}
if(cnt>=n/2+1)
{
out<<maj<<" "<<cnt;
}
else out<<"-1";
return 0;
}