You are given a code:

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

Can you predict the output of `main_solution("nszniy")` 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": "nszniy"}, "ref_output": "u|j|h|s|c|p|v|p|e|a", "ref_code": "def main_solution(x):\n    return func_13(func_20('uhcvea', 'jspp'), '|')", "funcname": "main_solution"}
rule