You are given a code:

def main_solution(x):
    return func_20(func_1('rcvi', 4), func_15('cwl'))

Can you predict the output of `main_solution("vaizwqrkhn")` 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": "vaizwqrkhn"}, "ref_output": "r\u00abccv\u00bbi\u00abrwc\u00bbv\u00abilr\u00bbcvircvi", "ref_code": "def main_solution(x):\n    return func_20(func_1('rcvi', 4), func_15('cwl'))", "funcname": "main_solution"}
rule