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#include<iostream>
#include<fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int v[1000007];
int main()
{
int n,cnt,el;
f>>n;
cnt=0;
el=-1;
for(int i=1;i<=n;i++){
f>>v[i];
if(cnt==0){
el=v[i];
cnt=1;
}
if(v[i]==el)
cnt++;
else
cnt--;
}
cnt=0;
for(int i=1;i<=n;i++)
if(v[i]==el)
cnt++;
if(cnt>n/2)
g<<el<<' '<<cnt;
else
g<<-1;
g<<'\n';
f.close();
g.close();
return 0;
}