#include <stdio.h>
int main()
{long n,i,j,p=1; int b; float r,aux,k; FILE *f,*g;
 f=fopen("fractii.in","r");
 fscanf(f,"%ld",&n);
 fclose(f);
 f=fopen("fr.txt","w");
 fprintf(f,"%f ",float(1)/float(1));
 fclose(f);
 for(i=1;i<=n;i++)
   for(j=1;j<=n;j++)
      if(i!=j) {b=1;
		k=float(i)/float(j);
		f=fopen("test.txt","w");
		fprintf(f,"%f",k);
		fclose(f);
		f=fopen("test.txt","r");
		fscanf(f,"%f",&r);
		fclose(f);
		f=fopen("fr.txt","r");
		while(!feof(f)) {fscanf(f,"%f",&aux);
			      if(aux==r) {b=0; break;}
			     }
		fclose(f);
		if(b) {g=fopen("fr.txt","a+");
		       fprintf(g,"%f ",r); p++;
		       fclose(g); }
	       }
 f=fopen("fractii.out","w");
 fprintf(f,"%ld",p);
 fclose(f);
 return 0;
}