You are given a code:

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

Can you predict the output of `main_solution("ukrodcwcyl")` 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": "ukrodcwcyl"}, "ref_output": "yug|fkj|jrp|oov|d|c|w|c|y|l", "ref_code": "def main_solution(x):\n    return func_20(func_20('yfjov', 'gjp'), func_13(x, '|'))", "funcname": "main_solution"}
rule