You are given a code:

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

Can you predict the output of `main_solution("qxduava")` 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": "qxduava"}, "ref_output": "t|q|e|f|w|l|m|s|o|e|k|c", "ref_code": "def main_solution(x):\n    return func_13(func_20('tewmok', 'qflsec'), '|')", "funcname": "main_solution"}
rule