config

def config(value):
    cols, voltage = divmod(value, 1)
    voltage = round(voltage, 3) * 1000
    for discrete_voltage in range(12, 300, 12):
        if discrete_voltage - 1 <= voltage <= discrete_voltage + 1:
            voltage = discrete_voltage
            break
    else:
        voltage = int(voltage)
    return int(cols), voltage



def test_config():
    values = [2.012, 2.0129, 2.024, 2.0249, 2.0489, 2.0479]
    for val in values:
        print(config(val))



test_config()

# (2, 12)
# (2, 12)
# (2, 24)
# (2, 24)
# (2, 48)
# (2, 48)