You are given a code:

def main_solution(x):
    return (func_23('lsr', 3) + func_13(x, '-'))

Can you predict the output of `main_solution("iihfszyjac")` 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": "iihfszyjac"}, "ref_output": "lsr1i-i-h-f-s-z-y-j-a-c", "ref_code": "def main_solution(x):\n    return (func_23('lsr', 3) + func_13(x, '-'))", "funcname": "main_solution"}
rule