You are given a code:

def main_solution(x):
    return (func_15(x) + func_5('wbhn', 'nu'))

Can you predict the output of `main_solution("omyaptjct")` 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": "omyaptjct"}, "ref_output": "\u00abo\u00bb\u00abm\u00bb\u00aby\u00bb\u00aba\u00bb\u00abp\u00bb\u00abt\u00bb\u00abj\u00bb\u00abc\u00bb\u00abt\u00bbnuwbhn", "ref_code": "def main_solution(x):\n    return (func_15(x) + func_5('wbhn', 'nu'))", "funcname": "main_solution"}
rule