You are given a code:

def main_solution(x):
    return func_20(func_1(x, 2), func_15('phd'))

Can you predict the output of `main_solution("lqinfcgbef")` 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": "lqinfcgbef"}, "ref_output": "l\u00abqpi\u00bbn\u00abfhc\u00bbg\u00abbde\u00bbflqinfcgbef", "ref_code": "def main_solution(x):\n    return func_20(func_1(x, 2), func_15('phd'))", "funcname": "main_solution"}
rule