def fib(n):
a, b = 0, 1
if n == 1:
print(a)
elif n <= 0:
print('not possible')
else:
print(a)
print(b)
for i in range(2,n):
c = a + b
a, b = b, c
if c <= n:
print(c)
else:
break
fib(10)
def fib(n):
a, b = 0, 1
if n == 1:
print(a)
elif n <= 0:
print('not possible')
else:
print(a)
print(b)
for i in range(2,n):
c = a + b
a, b = b, c
if c <= n:
print(c)
else:
break
fib(10)