You are given a code:

def main_solution(x):
    return func_13((x + 'alfgwt'), '|')

Can you predict the output of `main_solution("hqeirbt")` 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": "hqeirbt"}, "ref_output": "h|q|e|i|r|b|t|a|l|f|g|w|t", "ref_code": "def main_solution(x):\n    return func_13((x + 'alfgwt'), '|')", "funcname": "main_solution"}
rule