You are given a code:

def main_solution(x):
    return func_20(func_5('lazcip', 'tptw'), func_15('ntfl'))

Can you predict the output of `main_solution("ykddmuj")` 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": "ykddmuj"}, "ref_output": "t\u00abpnt\u00bbw\u00ablta\u00bbz\u00abcfi\u00bbp\u00abl\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_5('lazcip', 'tptw'), func_15('ntfl'))", "funcname": "main_solution"}
rule