You are given a code:

def main_solution(x):
    return func_20(func_13('wrul', '-'), func_15('jdplo'))

Can you predict the output of `main_solution("pwgnhuiic")` 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": "pwgnhuiic"}, "ref_output": "w\u00ab-jr\u00bb-\u00abud-\u00bbl\u00abp\u00bb\u00abl\u00bb\u00abo\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_13('wrul', '-'), func_15('jdplo'))", "funcname": "main_solution"}
rule