You are given a code:

def main_solution(x):
    return func_20(func_13(x, '|'), func_3('ikm'))

Can you predict the output of `main_solution("dfiigno")` 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": "dfiigno"}, "ref_output": "di|kfm|i|i|g|n|o", "ref_code": "def main_solution(x):\n    return func_20(func_13(x, '|'), func_3('ikm'))", "funcname": "main_solution"}
rule