You are given a code:

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

Can you predict the output of `main_solution("agnnakbixe")` 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": "agnnakbixe"}, "ref_output": "h|a|q|g|k|n|s|n|v|a|k|b|i|x|e", "ref_code": "def main_solution(x):\n    return func_13(func_20('hqksv', x), '|')", "funcname": "main_solution"}
rule