#!/usr/bin/python
import re
f=open('/var/log/auth.log','r')
while 1:
    line = f.readline()
    if not line:
      break
    m=re.search(r'(^[A-Z][a-z]{2} \d+ \d+:\d+:\d+).*user\s*=\s*(\w+)',line)
    print(m.group(1)+" "+m.group(2))


#!/usr/bin/python
import re


date="<DEIN INPUT>"
m=re.search('(^([0-9a-zA-Z]([-\.\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,9})$)', date)
print(m.group(0))