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2025-12-21 09:59:04 +07:00

8 lines
229 B
Python

x = int(input())
if x in range(1, 31):
array = [1 for x in range(x)]
for i in range(2, x):
array[i] = array[i - 1] + array[i - 2]
print(array[x - 1])
else:
print("So %d khong nam trong khoang [1,30]." % x)