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  1. n = int(input("n="))
  2. lst=[2]
  3. for i in range(3, n+1, 2):
  4. if (i > 10) and (i%10==5):
  5. continue
  6. for j in lst:
  7. if j*j-1 > i:
  8. lst.append(i)
  9. break
  10. if (i % j == 0):
  11. break
  12. else:
  13. lst.append(i)
  14. print (lst)
Success #stdin #stdout 0.02s 28384KB
stdin
20
stdout
n=[2, 3, 5, 7, 11, 13, 17, 19]