You are given a code:

def main_solution(x):
    return func_13(('icwzps' + 'nko'), '-')

Can you predict the output of `main_solution("rlmo")` 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": "rlmo"}, "ref_output": "i-c-w-z-p-s-n-k-o", "ref_code": "def main_solution(x):\n    return func_13(('icwzps' + 'nko'), '-')", "funcname": "main_solution"}
rule