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1. Press Windows key + X.
2. Click Command Prompt (Admin)
3. At the command prompt, type: 
    wmic path SoftwareLicensingService get OA3xOriginalProductKey 
    
This will reveal the product key. Volume License Product Key Activation.

Disclaimer: 
It will reveal the key if the windows you have installed is genuine.

zenius

1. On the command line, navigate to the repository that contains the commit you want to amend.
2. Type git commit --amend and press Enter.
3. In your text editor, edit the commit message and save the commit.

zenius

# Add Sublime Text repository signing key to verify downloaded packages:
wget -qO - https://download.sublimetext.com/sublimehq-pub.gpg | sudo apt-key add -

# For stable releases of Sublime Text:
echo "deb https://download.sublimetext.com/ apt/stable/" | sudo tee /etc/apt/sources.list.d/sublime-text.list

# For Unreleased, development versions:
echo "deb https://download.sublimetext.com/ apt/dev/" | sudo tee /etc/apt/sources.list.d/sublime-text.list

# Ensure that apt can handle HTTPS sources:

zenius

//'A'.charCodeAt() === 65
// 'N'.charCodeAt() === 78

#Solution No.1
    function rot13(str) {
      let result  = ''; 
      for(let i = 0; i < str.length; i++) {
        let char = str[i];
        if(/[A-Z]/.test(char)) {
          let value = char.charCodeAt();  

zenius

Create a function that sums two arguments together. 
If only one argument is provided, then return a function that expects one argument and returns the sum.

For example, addTogether(2, 3) should return 5, and addTogether(2) should return a function.
Calling this returned function with a single argument will then return the sum:
var sumTwoAnd = addTogether(2);
sumTwoAnd(3) returns 5.
If either argument isn't a valid number, return undefined.

Solution: 

zenius

Steps: 
1. update the apt package 
   sudo apt update 
2. install the git package 
   sudo apt install git 
3. Check if it is properly installed, 
   git --version 
   
   output: 
   git version <you will get your git version here>

zenius

Steps: 
1. update the apt package  
   sudo apt update 
2. install node and npm package 
   sudo apt install nodejs npm 
3. To check if node is properly installed, 
   node --version
   output: 
   <you will get your node version here>

zenius

Step 1: First update and upgrade the debian packages

sudo apt update && sudo apt upgrade

Step 2: Install all the necessary packages for fritzing

sudo apt install fritzing fritzing-data fritzing-parts

Fritzing is an open-source initiative to develop amateur or 
hobby CAD software for the design of electronics hardware, 
to support designers and artists ready to move from experimenting 

zenius

Usernames are used everywhere on the internet. 
They are what give users a unique identity on their favorite sites.

You need to check all the usernames in a database. 
Here are some simple rules that users have to follow when creating their username.

1) Usernames can only use alpha-numeric characters.

2) The only numbers in the username have to be at the end. 
There can be zero or more of them at the end. Username cannot start with the number.

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#Decompress String 
You are given a string S. You to have to first sort the characters in the string. 
Now, Suppose a character 'c' occurs x times in the  modified string. 
Replace these consecutive occurrences of the character 'c' with (x, c) in the string.
Itertools.groupby() will help you in achieving it.

Input Format
First line will contain a string s.

Constraints