You are given a code:

def main_solution(x):
    return (('gcxs' + 'bze') + func_13(x, '_'))

Can you predict the output of `main_solution("ixjdeesuwt")` 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": "ixjdeesuwt"}, "ref_output": "gcxsbzei_x_j_d_e_e_s_u_w_t", "ref_code": "def main_solution(x):\n    return (('gcxs' + 'bze') + func_13(x, '_'))", "funcname": "main_solution"}
rule