You are given a code:

def main_solution(x):
    return func_13(func_13('lfxppw', '-'), '|')

Can you predict the output of `main_solution("jpoj")` 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": "jpoj"}, "ref_output": "l|-|f|-|x|-|p|-|p|-|w", "ref_code": "def main_solution(x):\n    return func_13(func_13('lfxppw', '-'), '|')", "funcname": "main_solution"}
rule