You are given a code:

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

Can you predict the output of `main_solution("ohqk")` 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": "ohqk"}, "ref_output": "yoihdqk\u00abc\u00bb\u00abf\u00bb\u00abs\u00bb\u00abx\u00bb\u00abk\u00bb", "ref_code": "def main_solution(x):\n    return (func_20('yid', x) + func_15('cfsxk'))", "funcname": "main_solution"}
rule