I have a device which creates codes, and it has software to create passwords.
1. if 003472BL-2345 then the password is 2DD6
2. if 003473BL-2345 then the password is EC57
3. if 000000XX-2345 then--F9B5
4. if 003470BL-2222 then A8CF
I tried to decode its code many times, but I could not resovle it.
What kind of coding system is it using?
That looks like a problem posted here by redrooster. I'm working on his, no solution yet.
In mathematics, you don't understand things. You just get used to them.
I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.