fibonacci series(3rd meth)(f)

def fib(n):
    a=0
    b=1
    for i in range(1,n+1):
        c=a+b
        print(a,end=' ')
        a=b
        b=c
n=int(input('enter a number:'))
fib(n)

#output
enter a number 9
0 1 1 2 3 5 8 13 21