You are given a code:

def main_solution(x):
    return func_20(func_13(x, '-'), ('lygq' + 'ldi'))

Can you predict the output of `main_solution("jyoymqlxn")` 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": "jyoymqlxn"}, "ref_output": "jl-yyg-qol-dyi-m-q-l-x-n", "ref_code": "def main_solution(x):\n    return func_20(func_13(x, '-'), ('lygq' + 'ldi'))", "funcname": "main_solution"}
rule