You are given a code:

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

Can you predict the output of `main_solution("lowtqcumek")` 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": "lowtqcumek"}, "ref_output": "sbrmxxagasl|o|w|t|q|c|u|m|e|k", "ref_code": "def main_solution(x):\n    return (('sbrmxx' + 'agas') + func_13(x, '|'))", "funcname": "main_solution"}
rule