You are given a code:

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

Can you predict the output of `main_solution("jgcj")` 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": "jgcj"}, "ref_output": "v|k|e|g|h|g|a|s|o", "ref_code": "def main_solution(x):\n    return func_13(('vke' + 'ghgaso'), '|')", "funcname": "main_solution"}
rule