You are given a code:

def main_solution(x):
    return func_20(('ribh' + 'fwm'), func_15('pooudt'))

Can you predict the output of `main_solution("cefldjhlik")` 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": "cefldjhlik"}, "ref_output": "r\u00abipb\u00bbh\u00abfow\u00bbm\u00abo\u00bb\u00abu\u00bb\u00abd\u00bb\u00abt\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('ribh' + 'fwm'), func_15('pooudt'))", "funcname": "main_solution"}
rule