You are given a code:

def main_solution(x):
    return func_17('oze')

Can you predict the output of `main_solution("pcntn")` 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": "pcntn"}, "ref_output": "ezo", "ref_code": "def main_solution(x):\n    return func_17('oze')", "funcname": "main_solution"}
rule