You are given a code:

def main_solution(x):
    return func_20(func_13('xmiv', '-'), func_15('wgasoe'))

Can you predict the output of `main_solution("weqnj")` 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": "weqnj"}, "ref_output": "x\u00ab-wm\u00bb-\u00abig-\u00bbv\u00aba\u00bb\u00abs\u00bb\u00abo\u00bb\u00abe\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_13('xmiv', '-'), func_15('wgasoe'))", "funcname": "main_solution"}
rule