You are given a code:

def main_solution(x):
    return func_9(func_13('haxlrh', '|'))

Can you predict the output of `main_solution("usplgbxtlw")` 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": "usplgbxtlw"}, "ref_output": "h|a|x|l|r|hh|r|l|x|a|h", "ref_code": "def main_solution(x):\n    return func_9(func_13('haxlrh', '|'))", "funcname": "main_solution"}
rule