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