You are given a code:

def main_solution(x):
    return func_20(func_20('kcry', x), func_15('umaxuy'))

Can you predict the output of `main_solution("qltcc")` 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": "qltcc"}, "ref_output": "k\u00abquc\u00bbl\u00abrmt\u00bby\u00abcac\u00bb\u00abx\u00bb\u00abu\u00bb\u00aby\u00bb", "ref_code": "def main_solution(x):\n    return func_20(func_20('kcry', x), func_15('umaxuy'))", "funcname": "main_solution"}
rule