Prompt code:
A 3D image of a futuristic city with floating buildings, flying vehicles, and holographic advertisements. The buildings are a mix of shapes and sizes, with some having unique designs. There are flying vehicles of various sizes, some are parked near the buildings, while others are in motion. There are also holographic advertisements floating in the air, displaying various products and messages. The sky is a deep blue with a few clouds. The ground is paved with a grid pattern.
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