You are given a code:

def main_solution(x):
    return func_20(func_20('zkmabx', 'vmvaq'), (x + 'dhl'))

Can you predict the output of `main_solution("yqciwctxg")` 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": "yqciwctxg"}, "ref_output": "zyvqkcmimwvcataxbgqdxhl", "ref_code": "def main_solution(x):\n    return func_20(func_20('zkmabx', 'vmvaq'), (x + 'dhl'))", "funcname": "main_solution"}
rule