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#include <bits/stdc++.h>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int n,v[1000005];
int main()
{
f>>n;
for(int i=1;i<=n;i++) f>>v[i];
int element=0,ct=0;
for(int i=1;i<=n;i++){
if( ct==0 ){
ct=1;
element=v[i];
continue;
}
if( element==v[i] ) ct++;
else ct--;
}
if( ct==0 ){
g<<"-1";
return 0;
}
ct=0;
for(int i=1;i<=n;i++) if( element==v[i] ) ct++;
if( ct>=n/2+1 ){
g<<element<<' '<<ct;
return 0;
}
g<<"-1";
}