So how many TONs can you get as reward?
This is what says on freeton.org:
Reward
Only submissions with an average score equal to or more than 6.0 can get a reward.
1st prize … TONs
2nd prize … TONs
3rd prize … TONs
4th-10th place … TONs
Well, it is the very first contest proposal posted by the newly created Cryptography SG. I think that they will add the information about prizes after they discuss it. Then the community will make corrections and either increase or decrease the prize pool)