function getLowWinPercent(uint number) public pure returns (uint) {
        require(number >= 2 && number <= NUM_DICE_SIDES);
        if (number == 2) {
            return 1200;
        } else if (number == 3) {
            return 500;
        } else if (number == 4) {
            return 300;
        } else if (number == 5) {
            return 300;
        } else if (number == 6) {
            return 200;
        } else if (number == 7) {
            return 180;
        } else if (number == 8) {
            return 150;
        } else if (number == 9) {
            return 140;
        } else if (number == 10) {
            return 130;
        } else if (number == 11) {
            return 120;
        } else if (number == 12) {
            return 110;
        } else if (number == 13) {
            return 100;
        }
    }