/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
public static void main (String[] args) throws java.lang.Exception
    {
        String string = "123hh h3ll0 w0rld";
        System.out.println(string.split("\\d+").length-1);

    }
}