怎么简化代码，我时间和大小都超时了

Question

Answer 1

N, M = map(int, input(">>>").split())
CODE = [False if _ % 2 != 0 else True for _ in range(N + 1)] 

for i in range(3, M + 1):
    for j in range(i, N + 1, i):
        CODE[j] = not CODE[j]
        
res = ','.join(str(i) for i, j in enumerate(CODE[1:]) if j == False)
print(res)