You are given a code:

def main_solution(x):
    return func_20(func_11('ujjy', 2), func_13('oaxogu', '|'))

Can you predict the output of `main_solution("qkjeor")` 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": "qkjeor"}, "ref_output": "wol|laa|x|o|g|u", "ref_code": "def main_solution(x):\n    return func_20(func_11('ujjy', 2), func_13('oaxogu', '|'))", "funcname": "main_solution"}
rule