JAVA Solution

package javaapplication1;

import java.util.Scanner;


public class JavaApplication1 {

    public static void main(String[] args) {
        int count=0;
        String in = "ab26cd72ef7g8h9ayush101gau";
        boolean previous = false;
        Scanner s = new Scanner(System.in);
        String input = s.nextLine();
        char characters[] = in.toCharArray();
        for(char a : characters){
            if(Character.isDigit(a)){
                if(previous == true){
                    continue;
                }
                previous = true;
                count++;
            }
            else{
                previous = false;
            }
        }
        System.out.println(count);
    }

}