You are given a code:

def main_solution(x):
    return ((x + 'lfvd') + func_1('kzpi', 3))

Can you predict the output of `main_solution("osgpzpnc")` 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": "osgpzpnc"}, "ref_output": "osgpzpnclfvdkzpikzpikzpi", "ref_code": "def main_solution(x):\n    return ((x + 'lfvd') + func_1('kzpi', 3))", "funcname": "main_solution"}
rule