20 lines
345 B
Python
20 lines
345 B
Python
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list=[0]
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count=0
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n=int(input())
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for i in range(n):
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list.append(0)
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for i in range(2,n+1):
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for j in range(i,n+1,i):
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if j%i==0:
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if list[j]==0:
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list[j]=1
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else:
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list[j]=0
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count+=1
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print(count)
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for i in range(1,n+1):
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if list[i]==0:
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print(i,end=" ")
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