You are given a code:

def main_solution(x):
    return ('rju' + 'glcxo')

Can you predict the output of `main_solution("rypfsbq")` 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": "rypfsbq"}, "ref_output": "rjuglcxo", "ref_code": "def main_solution(x):\n    return ('rju' + 'glcxo')", "funcname": "main_solution"}
rule