using System;

public class Program

{

    public static void Main()

    {

        int i=0;

        int grade=0;

        int gradesCounter =0;

        for(i=0;i<3;i++)

        {

            grade = int.Parse(Console.ReadLine());

            if (grade > 90)

            {

                gradesCounter++;

            }

        }

        Console.Write (+gradesCounter);

        Console.WriteLine("whats your name and grades");

    }

}