You are given a code:

def main_solution(x):
    return func_13(('dhihp' + 'gzxhfw'), '|')

Can you predict the output of `main_solution("pkjxv")` 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": "pkjxv"}, "ref_output": "d|h|i|h|p|g|z|x|h|f|w", "ref_code": "def main_solution(x):\n    return func_13(('dhihp' + 'gzxhfw'), '|')", "funcname": "main_solution"}
rule