import java.util.*;

public class Main {
    public static void main(String[] args) {
        int count = 0;
        Scanner scanner = new Scanner(System.in);

        //write your code here......
        while(scanner.hasNext())
        {
            int num=scanner.nextInt();
            if(num>0)
            {
               count++; 
            }else{
                break;
            }
            
        }
        System.out.println(count);
    }
}