You are given a code:

def main_solution(x):
    return func_13(('siwctn' + x), '-')

Can you predict the output of `main_solution("xtjszknzte")` 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": "xtjszknzte"}, "ref_output": "s-i-w-c-t-n-x-t-j-s-z-k-n-z-t-e", "ref_code": "def main_solution(x):\n    return func_13(('siwctn' + x), '-')", "funcname": "main_solution"}
rule