You are given a code:

def main_solution(x):
    return func_20((x + 'dznug'), func_15('mcb'))

Can you predict the output of `main_solution("chvkjpx")` 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": "chvkjpx"}, "ref_output": "c\u00abhmv\u00bbk\u00abjcp\u00bbx\u00abdbz\u00bbnug", "ref_code": "def main_solution(x):\n    return func_20((x + 'dznug'), func_15('mcb'))", "funcname": "main_solution"}
rule