"""
The program is designed to replace the product ID with the product ean code -> It is useful when integrating the online store with the Amazon Vendor sales system.
To execute the program, we need a CSV file with 2 items, e.g .:
Product Code1, Code Ean1 Product Code2, Code Ean2
If there are two same files, but described e.g. 7441, 7441_2, 7441_5 (e.g. the same photo, but slightly modified), then the EAN code will be completed similarly: 0000000000000.MAIN, 0000000000000_1, 0000000000000_2 etc.
"""