水仙花数->Swift

for number in 100...999{
var hunder = number / 100
var ten = number / 10 % 10
var num = number % 10

let sum = pow(Decimal(hunder), 3) + pow(Decimal(ten), 3) + pow(Decimal(num), 3)
if sum == Decimal(number){
    print(number)
}

}