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#include <iostream>
#include <fstream>
#include <algorithm>
using namespace std;
int v[1000000];
int main() {
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int n,i,fr=0,c=0,k=0;
f>>n;
for(i=1;i<=n;i++) f>>v[i];
for(i=1;i<=n;i++)
{
if(fr==0)
{
fr=1;
c=v[i];
}
else if(c==v[i]) fr++;
else fr--;
}
for(i=1;i<=n;i++)
{
if(v[i]==c) k++;
}
if(k>n/2)g<<c<<" "<<k;
else g<<"-1";
f.close();
g.close();
return 0;
}
f.close();
g.close();
}