You are given a code:

def main_solution(x):
    return func_20(func_15('lkdu'), func_11(x, 1))

Can you predict the output of `main_solution("pjgebyogo")` 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": "pjgebyogo"}, "ref_output": "\u00abqlk\u00bbh\u00abfkc\u00bbz\u00abpdh\u00bbp\u00abu\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_15('lkdu'), func_11(x, 1))", "funcname": "main_solution"}
rule