#coding:utf-8    #設置python文件的編碼為utf-8，這樣就可以寫入中文注釋
def primeRange(n):
  myArray=[1 for x in range(n+1)] ##列表解析，生成長度為(n+1)的列表，每個數值都為1
  myArray[0]=0
  myArray[1]=0
  startPos=2
  while startPos <= n:
    if myArray[startPos]==1:
      key=2
      resultPos = startPos * key #可知startPos的整數倍都不是素數，設置startPos的整數倍的位置為0表示非素數
      while resultPos <= n:
        myArray[resultPos] =0
        key += 1
        resultPos = startPos *key
    startPos += 1

  resultList=[]  ##將最終的素數保存在resultList列表返回
  startPos=0
  while startPos <= n:
    if myArray[startPos] == 1:
      resultList.append(startPos)
    startPos += 1
  return resultList

numString=raw_input("Input the Range(>3):")
numInt=int(numString)
if numInt <= 3:
  print "The Number Need to be greater than 3"
else:
  primeResult=primeRange(numInt)
  print "The Result is:",primeResult