[
    {
        "n_min": 2,
        "n_max": 100,
        "min_val": 1,
        "max_val": 1000000000
    },
    {
        "n_min": 2,
        "n_max": 5,
        "min_val": 1,
        "max_val": 100
    },
    {
        "n_min": 3,
        "n_max": 20,
        "min_val": 1,
        "max_val": 100000
    },
    {
        "n_min": 5,
        "n_max": 50,
        "min_val": 100,
        "max_val": 1000000
    }
]