Decrypting the Triangle Cipher

# Introduction

In this project, you will learn how to decrypt a triangle cipher, which is a method of arranging characters into a right triangle. The hidden message is contained in the last character of each row, and these last characters are concatenated to form the transmitted information.

## 👀 Preview

text = " LcadcbsdxEsdxcx"
decryption_text = "LabEx"

## 🎯 Tasks

In this project, you will learn:

- How to create a function to decrypt a triangle cipher
- How to handle empty or `None` input
- How to implement the logic to extract the last character of each row and concatenate them

## 🏆 Achievements

After completing this project, you will be able to:

- Understand the concept of a triangle cipher
- Implement a function to decrypt a triangle cipher
- Handle different types of input, including empty or `None` input
- Apply your knowledge of string manipulation to solve a real-world problem