You are given a code:

def main_solution(x):
    return func_19(func_19('xemhqh', 3), 2)

Can you predict the output of `main_solution("coui")` 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": "coui"}, "ref_output": "hxemhq", "ref_code": "def main_solution(x):\n    return func_19(func_19('xemhqh', 3), 2)", "funcname": "main_solution"}
rule