Here is my code

```html
 <div id="radio-button">
    <input type="radio" name="colors11" value="1" id="myRadio21">Red color
    <input type="radio" name="colors12" value="2" id="myRadio22">black color
    <input type="radio" name="colors13" value="3" id="myRadio23">blue color
    <br>
    <input type="radio" name="colors21" value="1" id="myRadio21">Red color
    <input type="radio" name="colors22" value="2" id="myRadio22">black color
    <input type="radio" name="colors23" value="3" id="myRadio23">blue color
</div>
<p>Click the "Try it" button to display the value of the value attribute of the radio button.</p>

<button onclick="myFunction()">Try it</button>
```

and output default checked value 3 in js