import java.util.Random;

public class Main {

    public static void main(String[] args) {
        for (int i = 0; i < 10; i++) {
            System.out.println(shuffle(makePassword(10)));
        }

    }


    public static char[] makePassword(int n){
        var password = new char[n];
        var r = new Random();
        String klein = "abcdefghijklmnopqrstuvwxyz";
        String groß = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
        String sonder = "!$%&/()=,;.:-_.";
        String ziffer = "0123456789";

        password[0] = groß.charAt(r.nextInt(groß.length()));
        password[1] = sonder.charAt(r.nextInt(sonder.length()));
        password[2] = ziffer.charAt(r.nextInt(ziffer.length()));

        for (int i = 3; i < n; i++) {
            password[i]=klein.charAt(r.nextInt(klein.length()));
        }
        return password;
    }

    public static String shuffle(char[] data){
        var r = new Random();
        //Shuffle algorithmus
        for (int i = 0; i < data.length; i++) {
            int shuffle = r.nextInt(data.length);
            char temp = data[shuffle];
            data[shuffle] = data[i];
            data[i] = temp;
        }

        return new String(data);
    }
}