You are given a code:

def main_solution(x):
    return func_13(func_5('iugsyt', 'hcdq'), '_')

Can you predict the output of `main_solution("irxq")` 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": "irxq"}, "ref_output": "h_c_d_q_i_u_g_s_y_t", "ref_code": "def main_solution(x):\n    return func_13(func_5('iugsyt', 'hcdq'), '_')", "funcname": "main_solution"}
rule