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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int v[1000001];
int main()
{
int n,nr=0,cand=-1,i;
f>>n;
for (i=1;i<=n;i++)
{
f>>v[i];
if (nr==0)
{
cand=v[i];
nr=1;
}
else
if (v[i]==cand)
nr++;
else
nr--;
}
if (nr==0)
g<<"-1";
else
{
nr=0;
for(i=1;i<=n;i++)
if (v[i]==cand)
nr++;
if (nr>n/2)
g<<cand<<' '<<nr;
else
g<<"-1";
}
return 0;
}