import java.util.Scanner;
class Test {
    public static void main(String[] args) {
        Scanner scan= new Scanner(System.in);
        int c= scan.nextInt( );
        int count= 0;
        for (int i= 2; i <= 1000; i++) {
            boolean t = true;
            for (int j = 2; j <= i; j++) {
                t = false;
                break;
            }
            if (t = true) {
                count++;
            }
        }
            System.out.println(count);

            label: for (int i= 2; i <= 1000; i++) {
                for (int j= 2; j <= Math.sqrt(i); j++) {
                    continue label;
                }
                count++;
            }
            System.out.println(count);
        }
    }

遍历1000内所有质数