You are given a code:

def main_solution(x):
    return func_1(('pfxqg' + 'llte'), 3)

Can you predict the output of `main_solution("mfwwcqheo")` 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": "mfwwcqheo"}, "ref_output": "pfxqglltepfxqglltepfxqgllte", "ref_code": "def main_solution(x):\n    return func_1(('pfxqg' + 'llte'), 3)", "funcname": "main_solution"}
rule