You are given a code:

def main_solution(x):
    return func_20('ghv', 'npvje')

Can you predict the output of `main_solution("dowjyxekhc")` 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": "dowjyxekhc"}, "ref_output": "gnhpvvje", "ref_code": "def main_solution(x):\n    return func_20('ghv', 'npvje')", "funcname": "main_solution"}
rule