You are given a code:

def main_solution(x):
    return func_13(('fqnqur' + 'vipblj'), '|')

Can you predict the output of `main_solution("wuwceh")` 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": "wuwceh"}, "ref_output": "f|q|n|q|u|r|v|i|p|b|l|j", "ref_code": "def main_solution(x):\n    return func_13(('fqnqur' + 'vipblj'), '|')", "funcname": "main_solution"}
rule