## Algorithm

Problem Name: Python - Hex Color Code

In this HackerRank Functions in PYTHON problem solution,

CSS colors are defined using a hexadecimal (HEX) notation for the combination of Red, Green, and Blue color values (RGB).

Specifications of HEX Color Code

■ It can have 3 or 6 digits.
■ Each digit is in the range of 0 to F (1,2,3,4,5,6,7,8,9,0,A,B,C,D,E and F.
A - F letters can be lower case. (a,b,c,d,e and f are also valid digits).

Examples

``````Valid Hex Color Codes
#FFF
#025
#F0A1FB

Invalid Hex Color Codes
#fffabg
#abcf
#12365erff
``````

You are given N lines of CSS code. Your task is to print all valid Hex Color Codes, in order of their occurrence from top to bottom.

CSS Code Pattern

```Selector
{
Property: Value;
}
```

Input Format

The first line contains N ,the number of code lines.
The next N lines contains CSS Codes.

Constraints

0 < N < 50

Output Format

Output the color codes with '#' symbols on separate lines.

Sample Input

``````11
#BED
{
color: #FfFdF8; background-color:#aef;
font-size: 123px;
}
#Cab
{
background-color: #ABC;
border: 2px dashed #fff;
}
``````

Sample Output

``````#FfFdF8
#aef
#f9f9f9
#fff
#ABC
#fff
``````

Explanation

#BED and #Cab satisfy the Hex Color Code criteria, but they are used as selectors and not as color codes in the given CSS.

Hence, the valid color codes are:

#FfFdF8
#aef
#f9f9f9
#fff
#ABC
#fff

Note: There are no comments ( // or /* */) in CSS Code.

## Code Examples

### #1 Code Example with Python Programming

```Code - Python Programming```

``````
import re
n = int(input())
text = '\n'.join([input() for _ in range(n)])
pattern = re.compile(r'(?<=.)#[0-9a-fA-F]{3,6}')
matches = pattern.findall(text)
[print(match) for match in matches]
``````
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