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