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