{
    "train": [
        {
            "input": [[5, 2, 1, 2, 5, 4, 5, 2, 1, 2, 0, 0, 0, 0, 0, 2, 5, 4, 5, 2, 1]],
            "output": [[5, 2, 1, 2, 5, 4, 5, 2, 1, 2, 5, 4, 5, 2, 1, 2, 5, 4, 5, 2, 1]]
        },
        {
            "input": [[0, 5, 5, 7, 4, 3, 4, 7, 5, 0, 0, 0, 0, 0, 7, 5, 5, 7, 4, 3, 4]],
            "output": [[7, 5, 5, 7, 4, 3, 4, 7, 5, 5, 7, 4, 3, 4, 7, 5, 5, 7, 4, 3, 4]]
        },
        {
            "input": [[3, 2, 3, 0, 3, 2, 3, 6, 3, 2, 3, 6, 3, 2, 0, 0, 0, 2, 3, 6, 3]],
            "output": [[3, 2, 3, 6, 3, 2, 3, 6, 3, 2, 3, 6, 3, 2, 3, 6, 3, 2, 3, 6, 3]]
        }
    ],
    "test": [
        {
            "input": [[5, 2, 1, 2, 5, 1, 8, 8, 0, 0, 0, 0, 2, 5, 1, 8, 8, 1, 5, 2, 1]],
            "output": [[5, 2, 1, 2, 5, 1, 8, 8, 1, 5, 2, 1, 2, 5, 1, 8, 8, 1, 5, 2, 1]]
        }
    ]
}