7.2.6

import java.util.Scanner;
public class Main {


    static int  wordNumber(String a)
    {
        int words=0;
       for(int i=0,Length=a.length();i<Length;i++)
       {
           if (a.charAt(i)==' ') words++;
       }
        if (words>0) words++;
        return words;
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String a=in.nextLine();
        System.out.println(wordNumber(a));
    }
}