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#include <bits/stdc++.h>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
long long int n,v[1000011],ap,c;
int main()
{
fin>>n;
for(int i=1; i<=n; i++)
{
fin>>v[i];
if(c!=v[i])
{
if(ap)
ap--;
else
{
c=v[i];
ap=1;
}
}
else
ap++;
}
ap=0;
for(int i=1; i<=n; i++)
{
if(v[i]==c)
ap++;
}
if(ap>=(n/2)+1)
fout<<c<<' '<<ap;
else
fout<<-1;
return 0;
}