# Check Armstrong number using recursion sum=0def check_ArmstrongNumber(num):    global sum    if (num!=0):        sum+=pow(num%10,3)        check_ArmstrongNumber(num//10)    return sumnum=int(input("Enter a number:"))if (check_ArmstrongNumber(num) == num):    print("It is an Armstrong Number.")else:    print("It is not an Armstrong Number.")