using System;

public class Program

{

    public static void Main()

    {

        //koliko ima neparnih cifri u stringu

        string s = "1Ana jede bananu60876 5";

        int brojač = 0;

        for (int i= 0; i<s.Length; i++)

        {

            if (s[i]=='1' || s[i]=='3' || s[i]=='5' || s[i]=='7' || s[i]=='9') {brojač++;}

        }

        Console.WriteLine(brojač);

    }

}