You are a part of the World of Wizards—a global society of magicians. It's your task to create a "warped-spell" that helps the society ensure the authenticity and secrecy of its members.
All the members meet once a month at a secret club. In order to ensure the authenticity of members, each member is sent a "secret" number of 1-7 digits, 10 days before the meeting.
On the meeting day, each member has to present a new "warped" number, which is made by casting a warped-spell on the "secret" received 10 days ago.
The "warped" number must have the following magical attributes:
1. Must be strictly 4 - 7 digits in length, i.e., numbers from 1000 to 9999999.
2. Must always be greater than the secret itself.
3. Must have mirror-like characteristics, as shown below:
Asked in: Siemens
Image of the Question
All Testcases Passed ✔
