You are given a code:

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

Can you predict the output of `main_solution("quhdisamf")` 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": "quhdisamf"}, "ref_output": "q_u_h_d_i_s_a_m_fb-o-u-i", "ref_code": "def main_solution(x):\n    return (func_13(x, '_') + func_13('boui', '-'))", "funcname": "main_solution"}
rule