You are given a code:

def main_solution(x):
    return func_20(('phy' + x), func_15(x))

Can you predict the output of `main_solution("zbgspruq")` 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": "zbgspruq"}, "ref_output": "p\u00abhzy\u00bbz\u00abbbg\u00bbs\u00abpgr\u00bbu\u00abqs\u00bb\u00abp\u00bb\u00abr\u00bb\u00abu\u00bb\u00abq\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('phy' + x), func_15(x))", "funcname": "main_solution"}
rule