16 lines
278 B
Python
16 lines
278 B
Python
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# 1 1 2 3 5
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list=[]
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for i in range(100000):
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list.append(0)
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def feibo(n):
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if n==1 or n==2:
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return 1
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if list[n]!=0:
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return list[n]
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else:
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a=feibo(n-1)+feibo(n-2)
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list[n]=a
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return a
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n=int(input())
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b=feibo(n)
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print(b%(10**9+7))
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