Two quick things:
1) Can anybody confirm that it is in fact working.
2) The instructions suck, if it currently does work, can someone please clarify?...
"concatenate by the product of all added composite numbers by all added primes. (disregard 0's and 1's entirely)"
It refers to summing numbers, without explaining what numbers these are... Are they...
-All individual digits in the original string?
-All continuous sequences of digits in the original string?
-All byte values in the original string?
-All byte values in the string after incrementing?
-"All added composite numbers and all added primes"? (These numbers both being infinite)
We currently have some conflicting evidence for choosing the correct interpretation:
-The example solution's product has 9 digits. Of these, this is only possible for the 3rd and 4th interpretations.
-One is told to disregard 0's and 1's, this is meaningless for my 3rd and 4th interpretations.
-Earlier, "everything that isn't a number" is mentioned, suggesting one of the first two interpretations.
I'm leaning towards the "something else" if is supposed to be working, because I quickly attempted all of these and a few more without any success... This is a prog mission, not a logic or stego mission, so the instructions should be at least a little clear.