[
    {
        "n": 150000,
        "m": 300,
        "d": 1
    },
    {
        "n": 10000,
        "m": 2,
        "d": 5000
    },
    {
        "n": 50,
        "m": 3,
        "d": 1
    },
    {
        "n": 100,
        "m": 5,
        "d": 10
    }
]