Give the step-by-step reasoning process and then the final answer. Caleb, Andy and Billy went on a picnic with their father. Billy took 6 candies with him, Caleb took 11 and Andy left with 9. On the way, their father bought a packet of 36 candies. He gave 8 candies to Billy, 11 to Caleb and the rest to Andy. How many more candies does Andy now have than Caleb?
Billy took some candies and got more from his father for a total of 6 + 8 = 14 candies. Caleb has a total of 11 + 11 = 22 candies. Their father gave out 8 + 11 = 19 candies from a pack of 36. He gave the rest which is 36 - 19 = 17 candies to Andy. Andy has a total of 9 + 17 = 26 candies. Andy has 26 - 22 = 4 more candies than Caleb.
The final answer: 4.