# Challenge 2: Fibonacci Sequence

Learn how to compute the first n numbers of the Fibonacci series in this exercise lesson.

## We'll cover the following

## Problem statement

In this exercise, you have to compute the first *n* numbers of fibonacci sequence of a given `$range`

.

There is a **string** variable `$ans`

given in which you have to append all the computed Fibonacci numbers one by one.

Here’s a link showing how you can add values to a **string**.

### Input

An integer.

### Output

A string.

### Sample input

```
$range = 6
```

### Sample output

Then `$ans`

should have the following stored in it for the sample input given:

NoteJust like it is shown in the picture above, the values in thestringshould have spaces in between them. You can add a space by simply adding quotation marks with space in between them to your string, like this:" ".

## Coding challenge

**Write your code below**. It is recommended that you try solving the exercise yourself before viewing the solution.

**Good Luck!**

#the variable $range contains the number uptil which you need to calculate the fibonacci sequence# $range is available to you here$ans = "xyz"; #return the correct string#write your code for genersting fibonacci sequence herereturn $ans;