You are given a code:

def main_solution(x):
    return func_13(func_20(x, 'chkcpb'), '|')

Can you predict the output of `main_solution("ximdalfli")` 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": "ximdalfli"}, "ref_output": "x|c|i|h|m|k|d|c|a|p|l|b|f|l|i", "ref_code": "def main_solution(x):\n    return func_13(func_20(x, 'chkcpb'), '|')", "funcname": "main_solution"}
rule