You are given a code:

def main_solution(x):
    return func_20(('yvg' + x), func_15(x))

Can you predict the output of `main_solution("lqrjqkcdx")` 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": "lqrjqkcdx"}, "ref_output": "y\u00abvlg\u00bbl\u00abqqr\u00bbj\u00abqrk\u00bbc\u00abdjx\u00bb\u00abq\u00bb\u00abk\u00bb\u00abc\u00bb\u00abd\u00bb\u00abx\u00bb", "ref_code": "def main_solution(x):\n    return func_20(('yvg' + x), func_15(x))", "funcname": "main_solution"}
rule