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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int n, i, a, u, m;
int main()
{
fin>>n;
u=0;
for(i=1;i<=n;i++){
fin>>a;
if(u==0){
u=1;
m=a;
}else if(a==m)
u++;
else if(a!=m)
u--;
}
ifstream fin("elmaj.in");
fin>>n;
u=0;
for(i=1;i<=n;i++){
fin>>a;
if(m==a)
u++;
}
if(u>=n/2+1)
fout<<m<<" "<<u;
else
fout<<-1;
return 0;
}