Fibonacci_Series_Upto_N

n=int(input("Enter the length of the series: "))
a=0
b=1
c=a+b
if n<0:
    print("Negative Number given.")
else:
    if n==0:
        print(f"Fibonacci series upto {n} no is {n}")
    elif n==1:
        print(f"Fibonacci series upto {n} no is 0 1")
    else:
        print(f"Fibonacci series upto {n} no is: 0 1",end=" ")
        for i in range(2,n+1):
            c=a+b
            a=b
            b=c
            print(c,end=" ")