You are given a code:

def main_solution(x):
    return func_20(('hayju' + 'jln'), func_15('ijziyp'))

Can you predict the output of `main_solution("nnkriqtcqf")` 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": "nnkriqtcqf"}, "ref_output": "h\u00abaiy\u00bbj\u00abujj\u00bbl\u00abnz\u00bb\u00abi\u00bb\u00aby\u00bb\u00abp\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('hayju' + 'jln'), func_15('ijziyp'))", "funcname": "main_solution"}
rule