You are given a code:

def main_solution(x):
    return (('rjs' + 'ifvgpx') + func_13('voggaj', '|'))

Can you predict the output of `main_solution("cgugnvbjuh")` 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": "cgugnvbjuh"}, "ref_output": "rjsifvgpxv|o|g|g|a|j", "ref_code": "def main_solution(x):\n    return (('rjs' + 'ifvgpx') + func_13('voggaj', '|'))", "funcname": "main_solution"}
rule