Purpose: This program allows users to embed and extract secret messages within BMP images using Least Significant Bit (LSB) steganography. Optionally, it applies simple XOR encryption for added security. Features: Uses LSB technique to hide messages in the pixel data of BMP images. Supports XOR-based encryption/decryption with a custom key. Automatically creates a new output.bmp with the embedded message. Easy-to-use CLI for selecting between embedding and extraction. Usage Instructions: Run the program. Enter the path to a valid .bmp image. Choose whether to insert (I) or extract (L) a message. Provide a cipher key (type 0 to skip encryption). For insertion: input your message; for extraction: view the decoded message.