You are given a code:

def main_solution(x):
    return func_9(func_13('iqfas', '-'))

Can you predict the output of `main_solution("gtczrkn")` 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": "gtczrkn"}, "ref_output": "i-q-f-a-ss-a-f-q-i", "ref_code": "def main_solution(x):\n    return func_9(func_13('iqfas', '-'))", "funcname": "main_solution"}
rule