You are given a code:

def main_solution(x):
    return func_20(func_4('iabgm'), func_15('zhp'))

Can you predict the output of `main_solution("tzpazzys")` 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": "tzpazzys"}, "ref_output": "i\u00abazb\u00bbg\u00abmh\u00bb\u00abp\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_4('iabgm'), func_15('zhp'))", "funcname": "main_solution"}
rule