You are given a code:

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

Can you predict the output of `main_solution("dusagatkee")` 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": "dusagatkee"}, "ref_output": "d|u|s|a|g|a|t|k|e|e|c|m|y", "ref_code": "def main_solution(x):\n    return func_13((x + 'cmy'), '|')", "funcname": "main_solution"}
rule