You are given a code:

def main_solution(x):
    return (func_13('hmsxa', '|') + ('nvrrf' + 'mswlhk'))

Can you predict the output of `main_solution("rmgrhda")` 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": "rmgrhda"}, "ref_output": "h|m|s|x|anvrrfmswlhk", "ref_code": "def main_solution(x):\n    return (func_13('hmsxa', '|') + ('nvrrf' + 'mswlhk'))", "funcname": "main_solution"}
rule