You are given a code:

def main_solution(x):
    return func_20(func_19('gdlli', 2), func_15('wrfvn'))

Can you predict the output of `main_solution("krpdkoceg")` 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": "krpdkoceg"}, "ref_output": "l\u00ablwi\u00bbg\u00abdr\u00bb\u00abf\u00bb\u00abv\u00bb\u00abn\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_19('gdlli', 2), func_15('wrfvn'))", "funcname": "main_solution"}
rule