public class Main {
    public static void main(String[] args) {
        int count = 0;
        Scanner scanner = new Scanner(System.in);
        while(scanner.hasNext()==true){
            if(scanner.nextInt()>0){
                count+=1;
            }
            else{
                break;
            }
        }
        System.out.println(count);
        //write your code here......
    }
}