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#include<fstream>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
int v[1000003],i,n,nr,nr1,el;
int main(){
fin>>n;
for(i=1;i<=n;i++){
fin>>v[i];
}
nr=1;
el=v[1];
for(i=2;i<=n;i++){
if(v[i]==el){
nr++;
}else{
if(nr==1){
el=v[i];
}else{
nr--;
}
}
}
nr1=0;
for(i=1;i<=n;i++){
if(v[i]==el){
nr1++;
}
}
if(nr1>=n/2+1){
fout<<el<<" "<<nr1;
}else
fout<<-1;
return 0;
}