You are given a code:

def main_solution(x):
    return (('mpil' + 'booyxs') + ('jja' + 'xpa'))

Can you predict the output of `main_solution("fgosyxvs")` 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": "fgosyxvs"}, "ref_output": "mpilbooyxsjjaxpa", "ref_code": "def main_solution(x):\n    return (('mpil' + 'booyxs') + ('jja' + 'xpa'))", "funcname": "main_solution"}
rule