You are given a code:

def main_solution(x):
    return func_17(func_13('jnhi', '_'))

Can you predict the output of `main_solution("ozhz")` 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": "ozhz"}, "ref_output": "i_h_n_j", "ref_code": "def main_solution(x):\n    return func_17(func_13('jnhi', '_'))", "funcname": "main_solution"}
rule