#include <iostream>

using namespace std;

int main()
{
	int n,i,j;
	cout<<"n = ";
	cin>>n;
	for (i=1;i<=n;i++)
		for (j=1;j<=n;j++)
			if (i==1 || j==1)
					cout<<i<<"/"<<j<<" ";
			else
				if (i%j && j%i)
					cout<<i<<"/"<<j<<" ";
	return 0;
}