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#include <iostream>
#include <fstream>
#include <stack>
#define nmax 1000001
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
stack <int> stiva;
int sir[nmax],n,contor=0;
int main() {
f>>n;
for(int i=1;i<=n;i++){
f>>sir[i];
if(stiva.empty() || sir[i]==stiva.top()){
stiva.push(sir[i]);
}else if(sir[i]!=stiva.top() && !stiva.empty()){
stiva.pop();
}
}
if(stiva.empty()){
g<<-1;
return 0;
}
for(int i=1;i<=n;i++){
if(sir[i]==stiva.top()){
contor++;
}
}
if(contor>=n/2+1){
g<<stiva.top()<<' '<<contor;
}else{
g<<-1;
}
f.close();
g.close();
}