/*
 Write a program segment that reads a sequence of 
 integers until a 0 is encountered, and outputs the
 number of non-zero numbers read. For example, if 
 the input is:

    2
    13
    -7
    21
    -11
    0

 The code will read in all the integers, and 
 produce the following output:

    Number of non-zero integers: 5

 */
import java.util.Scanner;
public class HW4q2a {
	public static void main(String[] args)
	{
		Scanner kb=new Scanner(System.in);
		
		int userInt=kb.nextInt();
		int count=0;
		while (userInt!=0)
		{
			count++;
			userInt=kb.nextInt();
		}
		System.out.println("Number of non-zero integers: "+count);
	}
}