You are given a code:

def main_solution(x):
    return func_13(func_20(x, 'tzecx'), '|')

Can you predict the output of `main_solution("qbtdxta")` 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": "qbtdxta"}, "ref_output": "q|t|b|z|t|e|d|c|x|x|t|a", "ref_code": "def main_solution(x):\n    return func_13(func_20(x, 'tzecx'), '|')", "funcname": "main_solution"}
rule