/* 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 text = "Digito123";
 
        char[] digitos = new char[9];
        int digitosTotal = 0;
 
        for(char caracter : text.toCharArray()){
        	int asciiCode = (int)caracter;
        	if(asciiCode >= '0' &&  asciiCode <= '9') digitosTotal++;
        }
 
        System.out.print(digitosTotal);
    }
 
}

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