This is HackerRank 30 Days of Code Challenge. I have use Python 3.5 for solving this problem. Download Python 3.5 from here.

In the first problem require knowledge of taking Input and Printing Output. This is very basic problem, as the name Hello, World suggests.

The input and output are both stdin and stdout

Objective
In this challenge, we review some basic concepts that will get you started with this series. You will need to use the same (or similar) syntax to read input and write output in challenges throughout HackerRank. Check out the Tutorial for learning materials and an instructional video!

Task
To complete this challenge, you must save a line of input from stdin to a variable, print Hello, World. on a single line, and finally print the value of your variable on a second line.

You’ve got this!

Note: The instructions are Java-based, but we support submissions in many popular languages. You can switch languages using the drop-down menu above your editor, and the inputString variable may be written differently depending on the best-practice conventions of your submission language.

Input Format

A single line of text denoting inputString  (the variable whose contents must be printed).

Output Format

Print Hello, World. on the first line, and the contents of inputString on the second line.

Sample Input

Welcome to 30 Days of Code!

Sample Output

Hello, World. Welcome to 30 Days of Code!

Solution:

Here the first line commands to take input from user and save it to a string variable input_string. The input is always taken in string data type but can be converted to other data types. The second statement prints ‘Hello, World.’. The third line print the value of input_string variable.

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HAPPY CODING ♥♥