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# Sorry i don't get this one..

Sorry i don't get this one.. The loops are very difficult i think.

while.swift
```let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0

```

Hey Lucas,

Don't worry loops were very difficult for me when I started, but with a little practice they become a force of nature.

Step 1: You need to define how many numbers are in the array and you do this with the count property.

```while counter < numbers.count
{
counter++
}
```

Thank you Andres!

and can you also help with step 2?

Lucas.

Hey Lucas,

The step 2 is simple. All you have to do is add the values together to get the sum of all of them. You can do it by extracting each value from the array*(the counter variable)* and adding it to the sum variable.

```while counter < numbers.count
{
sum = sum + numbers[counter]
counter++
}
```