You are given a code:

def main_solution(x):
    return func_22(func_13('zskqbg', '|'))

Can you predict the output of `main_solution("tefdhbmxm")` 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": "tefdhbmxm"}, "ref_output": "z|s|k|q|b|", "ref_code": "def main_solution(x):\n    return func_22(func_13('zskqbg', '|'))", "funcname": "main_solution"}
rule