You are given a code:

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

Can you predict the output of `main_solution("ncomtau")` 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": "ncomtau"}, "ref_output": "l|i|v|r|n|c|o|m|t|a|u", "ref_code": "def main_solution(x):\n    return func_13(('livr' + x), '|')", "funcname": "main_solution"}
rule