You are given a code:

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

Can you predict the output of `main_solution("rutujxgmss")` 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": "rutujxgmss"}, "ref_output": "r|u|t|u|j|x|g|m|s|s|s|j|o|g|f|r", "ref_code": "def main_solution(x):\n    return func_13((x + 'sjogfr'), '|')", "funcname": "main_solution"}
rule