I don't know what to do. JS graphics

Code Help HTML/CSS/JS
1

Question:
I got all of my code working but I don’t know how to make the candles go from one side to the other when you type in a number over 1. please help.
Link to code:
https://replit.com/@jackiboy787/Birthday-cake#index.html
or

code snippet:

while(true){
        
        if(age == 1){
            var candle = new Rectangle(10, 75);
            candle.setPosition(pos1 , pos2);
            candle.setColor("red");
            add(candle);
            break;
        }else if(count == 0){
            
            candle.setPosition(pos1 , pos2);
            candle.setColor("red");
            add(candle);
            pos3 = pos1 + 
            count++;
        }else{
            candle.setPosition(pos3 , pos2);
            candle.setColor("red");
            add(candle);
            count--;
        }
        break;
    }