Ответ:
def fib(n):
if n == 0:
return 0
else:
a, b = 0, 1
for i in range(2, n + 1):
a, b = b, a + b
return b
end = int(input())
if end < 0:
print("меньше 0")
else:
count = 0
sum = 0
while fib(count) <= end:</p>
sum = sum + fib(count);
count+=1
print (sum)
Объяснение:
