You are given a code:

def main_solution(x):
    return func_20(func_15('clksf'), func_5('jathxz', 'vbdj'))

Can you predict the output of `main_solution("szirdp")` 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": "szirdp"}, "ref_output": "\u00abvcb\u00bbd\u00abjlj\u00bba\u00abtkh\u00bbx\u00abzs\u00bb\u00abf\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('clksf'), func_5('jathxz', 'vbdj'))", "funcname": "main_solution"}
rule