1
Input: 1 → [?] → 11, what is the rule? =
4
Input: 3 → [?] → 6, what is the rule? =
5
Input: 8 → [?] → 24, what is the rule? =
6
Input: 10 → [?] → 12, what is the rule? =
7
Input: 2 → [?] → 10, what is the rule? =
8
Input: 5 → [?] → 7, what is the rule? =