You are given a code:

def main_solution(x):
    return func_1(func_13('lnsvb', '-'), 4)

Can you predict the output of `main_solution("wgtrdpaykt")` 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": "wgtrdpaykt"}, "ref_output": "l-n-s-v-bl-n-s-v-bl-n-s-v-bl-n-s-v-b", "ref_code": "def main_solution(x):\n    return func_1(func_13('lnsvb', '-'), 4)", "funcname": "main_solution"}
rule