Detailed Instructions: Given a premise, an initial context, an original ending, and a counterfactual context, the task is to generate a new story ending aligned with the counterfactual context and as close to the original ending as possible. Each instance consists of a five-sentence story. The premise is the first sentence of a story, and the second sentence, which is the initial context, provides more information about the story's context and the story's general plot. The original ending is the last three sentences of the story. Also, a counterfactual context is a slight modification to the initial context. You should write a new story ending that edits the original story ending as little as possible to regain coherence with the counterfactual context. To sum up, you should write the last three sentences of a story based on the premise(first sentence) and the counterfactual context(second sentence) of the story.
Q: Premise: Rob was invited to go trick or treating. 
 Initial Context: But he claimed trick or treating was for children. 
 Original Ending: Inside however, Rob was too embarrassed to wear a costume. Rob stayed inside for Halloween. He felt regret when he saw all of his friend's candy. 
 Counterfactual Context: He loved Halloween and dressed up as Ironman.
A:
He and his friends excitedly went out and began knocking on doors. Rob was having a great time. He was happy to see how much candy he had at the end of the night. 