You are given a code:

def main_solution(x):
    return func_20(('zqds' + x), func_20('opga', 'jjcnuz'))

Can you predict the output of `main_solution("tgux")` 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": "tgux"}, "ref_output": "zoqjdpsjtggcuaxnuz", "ref_code": "def main_solution(x):\n    return func_20(('zqds' + x), func_20('opga', 'jjcnuz'))", "funcname": "main_solution"}
rule