```public class MyTree{
    private MyTree left, right;
    private char value = 0;
    private int counter = 0;
    public MyTree(){}

    public MyTree(char c){
        add(c);
    }
    private MyTree(char c,int counter){
        add(c);
        this.counter = counter++;
    }
    public MyTree add(char c){
        if (value == 0){
            this.value = c;
        }
        else if(c > value){
            if(right == null){
                right = new MyTree(c);
            }else right.add(c);
        }
        else if(c < value){
            if(left == null){
                left = new MyTree(c);
            }else left.add(c);
            counter++;
        }
        return this;
    }
    public MyTree add(char[] chars){
        for (int i = 0; i < chars.length; i++) {
            add(chars[i]);
        }
        return this;
    }
    public void count(char c){
    }
    @Override
    public String toString() {
        String tmp = "[";
        if(left != null){
            tmp += left.toString() + ", ";
        }
        if(value != 0){
            tmp += value + ", ";
        }
        if(right != null){
            tmp += right.toString() + ", ";
        }
        tmp += "]";
        return tmp;
    }
    public int getCount(){
        return counter;
    }
    public MyTree printTree(){
        System.out.println(toString());
        return this;
    }
    public MyTree printCount(){
        System.out.println(getCount());
        return this;
    }
    public static void main(String[] args) {
        MyTree myTreeElement = new MyTree();
        char[] lettersToPrint = new char[]{
            'a','a','b','c','d', 'e','f','g','h','i','j'
        };
        myTreeElement.add(lettersToPrint)
        .printTree()
        .printCount();
    }
}```