You are given a code:

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

Can you predict the output of `main_solution("iecefvcmde")` 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": "iecefvcmde"}, "ref_output": "i|e|c|e|f|v|c|m|d|e|w|x|g", "ref_code": "def main_solution(x):\n    return func_13((x + 'wxg'), '|')", "funcname": "main_solution"}
rule