You are given a code:

def main_solution(x):
    return func_5(func_4('hel'), 'pcto')

Can you predict the output of `main_solution("sqirmbxk")` 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": "sqirmbxk"}, "ref_output": "pctohel", "ref_code": "def main_solution(x):\n    return func_5(func_4('hel'), 'pcto')", "funcname": "main_solution"}
rule