{
    "period": 3420781,
    "three_groups": [
        "小双",
        "大单",
        "小单"
    ],
    "two_groups": [
        "小双",
        "大单"
    ],
    "one_group": "小单",
    "kill_group": "小单",
    "special_numbers": [
        12,
        4,
        15,
        17
    ],
    "algorithms": {
        "3y": [
            "小单",
            "大单",
            "小双"
        ],
        "5y": [
            "小双",
            "小单"
        ],
        "9y": [
            "大单",
            "小单",
            "小双"
        ],
        "10y": {
            "recommend": [
                "小双",
                "大单"
            ],
            "kill": "小单"
        },
        "formula_kill": "小单"
    }
}