You are given a code:

def main_solution(x):
    return func_5(func_13('kbvpth', '|'), 'cntb')

Can you predict the output of `main_solution("ccxrot")` 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": "ccxrot"}, "ref_output": "cntbk|b|v|p|t|h", "ref_code": "def main_solution(x):\n    return func_5(func_13('kbvpth', '|'), 'cntb')", "funcname": "main_solution"}
rule