I think this was a lot easier than it was intended. You can work out the offset where the first jump would be - and even verify it if need be.

In fact you could just do a simple manipulation and inspect the string and have a good guess.

please help me, i think i found the flag but it doesn't work. Either I don't have the right flag or I don't have the right format

you can write a simple script which find the intial value of inner loop then add+1 in it get the flag

A cruel joke. Look closely at examples.

That was a very fun challenge, thank you for the programming challenge and introducing me a little bit to block chaining. As others have said, the cipher might be a little too easy to crack.

Pretty easy after realizing a certain thing

you can write a simple script which find the intial value of inner loop then add+1 in it get the flag

I think this was a lot easier than it was intended. You can work out the offset where the first jump would be - and even verify it if need be.

In fact you could just do a simple manipulation and inspect the string and have a good guess.

please help me, i think i found the flag but it doesn't work. Either I don't have the right flag or I don't have the right format

A cruel joke. Look closely at examples.

That was a very fun challenge, thank you for the programming challenge and introducing me a little bit to block chaining. As others have said, the cipher might be a little too easy to crack.

Pretty easy after realizing a certain thing