import java.util.Scanner;
public class Main
{
	public static void main(String[] Args)
	{
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		int c = sc.nextInt();
		int i = 0;

		if(a>=90) ++i;
		if(b>=90) ++i;
		if(c>=90) ++i;
		 System.out.println(i);

	}
}
/**************************************************************
	Problem: 1678
	User: admin
	Language: Java
	Result: Accepted
	Time:675 ms
	Memory:40272 kb
****************************************************************/