Estimate the power demand of a computer system using the given time and CPU utilization information using Python.
Utilization = 10%
Operating Time = 10 hours
Power Consumption = 100 Watts
def calculatePowerDemand(util, time, power):
    return util * time * power

PowerDemand = calculatePowerDemand(0.1, 10, 100)
print(PowerDemand)