You are given a code:

def main_solution(x):
    return (func_5(x, 'fkzy') + func_13('lufkn', '|'))

Can you predict the output of `main_solution("khphbcqf")` 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": "khphbcqf"}, "ref_output": "fkzykhphbcqfl|u|f|k|n", "ref_code": "def main_solution(x):\n    return (func_5(x, 'fkzy') + func_13('lufkn', '|'))", "funcname": "main_solution"}
rule