package com.example.helloworld;

import java.util.Random;

public class HelloWorld {
    public static void main(String []args){
        Random rand = new Random();

        String substring = "";
        String polynom = "";
        int index, length = 0;

        String[] letters = {"a", "o", "n", "t"};

        for (int j = 0; j < 10; j++)
        {
            int polynomLength = rand.nextInt(11); // generate a polynom length 0 - 10
            for (int i = 1; i < polynomLength; i++)
            {
                index = rand.nextInt(4); // 0 - 3
                polynom = letters[index] + polynom + letters[index];
            }

            if (rand.nextInt(2) == 1) //50% chance to add a letter to the middle of the polynom
            {
                index = rand.nextInt(4); // 0 - 3
                //otto
                //4 / 2 = 2
                //0 1 2 3
                length = polynom.length();
                polynom = new StringBuffer(polynom).insert(length/2, letters[index]).toString();
            }
            System.out.println(polynom);
            polynom = "";
        }
    }
}