You are given a code:

def main_solution(x):
    return (func_13('deuqeo', '_') + func_13('gwatt', '_'))

Can you predict the output of `main_solution("qiqptnhish")` 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": "qiqptnhish"}, "ref_output": "d_e_u_q_e_og_w_a_t_t", "ref_code": "def main_solution(x):\n    return (func_13('deuqeo', '_') + func_13('gwatt', '_'))", "funcname": "main_solution"}
rule