[
    {
        "n": 5,
        "m": 5,
        "max_val": 1000000000
    },
    {
        "n": 15,
        "m": 15,
        "max_val": 1000000000
    },
    {
        "n": 20,
        "m": 20,
        "max_val": 100000000
    }
]