You are given a code:

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

Can you predict the output of `main_solution("vaazcpqot")` 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": "vaazcpqot"}, "ref_output": "v-a-a-z-c-p-q-o-t-r-i-a-y-a", "ref_code": "def main_solution(x):\n    return func_13((x + 'riaya'), '-')", "funcname": "main_solution"}
rule