Definition: This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.
Input: Passage: Frustration with censorship and editorial interference led to a group of Pilote cartoonists to found the adults-only L'Echo des savanes in 1972. Adult-oriented and experimental comics flourished in the 1970s, such as in the experimental science fiction of Mbius and others in Metal hurlant, even mainstream publishers took to publishing prestige-format adult comics. Question: Pilote cartoonists were upset with censorship and what?
Output:
editorial interference