import java.util.*;
public class Main { public static void main(String[] args) { int count = 0; Scanner scanner = new Scanner(System.in); int i=0; while(scanner.nextInt()>0)i++; System.out.print(i);
}
}
import java.util.*;
public class Main { public static void main(String[] args) { int count = 0; Scanner scanner = new Scanner(System.in); int i=0; while(scanner.nextInt()>0)i++; System.out.print(i);
}
}