You are given a code:

def main_solution(x):
    return func_20(func_11('fcifm', 2), ('mys' + 'xacz'))

Can you predict the output of `main_solution("skmkyr")` 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": "skmkyr"}, "ref_output": "hmeykshxoacz", "ref_code": "def main_solution(x):\n    return func_20(func_11('fcifm', 2), ('mys' + 'xacz'))", "funcname": "main_solution"}
rule