n=sc.nextInt();
        int[] a=new int[n+1];
        int[] b=new int[n+1];
        int[][] c=new int[n+1][5];
        int[][] d=new int[n+1][5];
        for (int i=1;i<=n;i++){
             a[i]=sc.nextInt();
             b[i]=sc.nextInt();
             c[i][1]=a[i];
             d[i][1]=b[i];
             c[i][2]=b[i]/10*10+a[i]/10;
             d[i][2]=b[i]%10*10+a[i]%10;
             c[i][3]=b[i]%10*10+b[i]/10;
             d[i][3]=a[i]%10*10+a[i]/10;
             c[i][4]=a[i]%10*10+b[i]%10;
             d[i][4]=a[i]/10*10+b[i]/10;
             if (i<n){
                 sc.next();
             }
        }
        ans=n;
        int[] v=new int[88888];
        for (int i=1;i<=n;i++){
            for (int k=1;k<=4;k++){
                for (int j=i+1;j<=n;j++){
                    if (v[c[i][k]*1000+d[i][k]]==520){
                        continue;
                    }
                    if (c[i][k]==a[j]&&d[i][k]==b[j]){
                         ans--;

                    }
                }
                 v[c[i][k]*1000+d[i][k]]=520;
            }
        }
        out.println(ans);
        out.close();