You are given a code:

def main_solution(x):
    return ('zondzf' + 'zkqgwl')

Can you predict the output of `main_solution("pxcze")` 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": "pxcze"}, "ref_output": "zondzfzkqgwl", "ref_code": "def main_solution(x):\n    return ('zondzf' + 'zkqgwl')", "funcname": "main_solution"}
rule