You are given a code:

def main_solution(x):
    return (func_15('ndt') + func_13('ilkqqn', '-'))

Can you predict the output of `main_solution("iiayq")` 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": "iiayq"}, "ref_output": "\u00abn\u00bb\u00abd\u00bb\u00abt\u00bbi-l-k-q-q-n", "ref_code": "def main_solution(x):\n    return (func_15('ndt') + func_13('ilkqqn', '-'))", "funcname": "main_solution"}
rule