[1.1]

package k1022;

import java.util.Scanner;
public class k {
    public static void main(String[] args)
    {
    
        int nA;
        int nB = 0; 

        Scanner input=new Scanner(System.in);
        nA = input.nextInt()+30;

        for(int i = 0;i < 10 ;i++)
        {
    
            if(nA >= input.nextInt())
            {
                nB++;
            }
        }
        System.out.println(nB);
    
    
    }

}