#include <iostream.h>
#include <fstream.h>
void main()
{byte n,c,i,j;
int l;
fstream f("lacate.in",ios::in);
f>>n;
f.close();
l=0;
fstream g("lacate.out",ios::out);
g<<n*(n-1)/2<<" "<<n-1;
//for (i=1

g.close();
}