You are given a code:

def main_solution(x):
    return func_20(func_15('pygk'), func_20(x, 'axhivu'))

Can you predict the output of `main_solution("holiaeqer")` without writing any code? Please reason and put your final answer in the following json format: {"output": <your output>}, where <your output> should be the final string.
user
{"ref_input": {"x": "holiaeqer"}, "ref_output": "\u00abhpa\u00bbo\u00abxyl\u00bbh\u00abigi\u00bba\u00abvke\u00bbuqer", "ref_code": "def main_solution(x):\n    return func_20(func_15('pygk'), func_20(x, 'axhivu'))", "funcname": "main_solution"}
rule