package birthday;
import java.util.Scanner;


public class test {
    public static void main(String[] args) {
        Scanner scan = new Scanner (System.in);
        String text;
        int langd;
        int nisse = 0;
        System.out.print("Skriv in text: ");
        text = scan.nextLine();
        langd = text.length();
        
        for (int i = 0; i < langd; i++){
            if(text.substring(i,i+1).equals("a")){
            nisse += 1;    
            }
        }
        System.out.print(nisse);   
    }
}