You are given a code:

def main_solution(x):
    return func_20(func_1('yiuro', 4), func_15(x))

Can you predict the output of `main_solution("ghkshq")` 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": "ghkshq"}, "ref_output": "y\u00abigu\u00bbr\u00abohy\u00bbi\u00abukr\u00bbo\u00abysi\u00bbu\u00abrho\u00bby\u00abiqu\u00bbro", "ref_code": "def main_solution(x):\n    return func_20(func_1('yiuro', 4), func_15(x))", "funcname": "main_solution"}
rule