You are given a code:

def main_solution(x):
    return (func_20(x, 'xum') + func_3('jayre'))

Can you predict the output of `main_solution("tymfe")` 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": "tymfe"}, "ref_output": "txyummfeaejry", "ref_code": "def main_solution(x):\n    return (func_20(x, 'xum') + func_3('jayre'))", "funcname": "main_solution"}
rule