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#include <bits/stdc++.h>
using namespace std;
ifstream in("elmaj.in");
ofstream out("elmaj.out");
int n,a[1001000],q,t,x,p,cand,ap;
int main()
{
in>>n;
for(int i=1;i<=n;i++) in>>a[i];
for(int i=1;i<=n;i++)
{
if(ap==0)
{
cand=a[i];
ap=1;
}
else if(a[i]==cand) ap++;
else ap--;
}
ap=0;
for(int i=1;i<=n;i++) if(a[i]==cand) ap++;
if(ap>=n/2+1) out<<cand<<" "<<ap;
else out<<-1;
return 0;
}