. Python Program to check Armstrong Number?

   HINT : 153 = 1*1*1 + 5*5*5 + 3*3*3  // 153 is an Armstrong number.
x=int(input('enter a number'))
y=len(str(x))
sum=0
while x > 0 :
    num=x%10
    sum=sum+num**y
    x=int(x/10)
    print(sum)




2. Python Program for How to check if a given number is Fibonacci number?

   HINT : A Fibonacci sequence is the integer sequence of 0, 1, 1, 2, 3, 5, 8....

          The first two terms are 0 and 1. 
          
          All other terms are obtained by adding the preceding two terms. 

          This means to say the nth term is the sum of (n-1)th and (n-2)th term.

x=int(input('enter seq num'))
a=0
b=1
while x >1:
    print(a)
    sum=a+b
    a=b
    b=sum
    x=x-1