You are given a code:

def main_solution(x):
    return ('ywae' + 'xqvj')

Can you predict the output of `main_solution("columpyck")` 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": "columpyck"}, "ref_output": "ywaexqvj", "ref_code": "def main_solution(x):\n    return ('ywae' + 'xqvj')", "funcname": "main_solution"}
rule