You are given a code:

def main_solution(x):
    return ('xee' + 'why')

Can you predict the output of `main_solution("mcqphwk")` 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": "mcqphwk"}, "ref_output": "xeewhy", "ref_code": "def main_solution(x):\n    return ('xee' + 'why')", "funcname": "main_solution"}
rule