<zgrep> overwrite bin/tomfoolery = if [ -z "$1" ];then exec echo "I have nothing to tell you.";fi;f="tmflry/$(echo "$1" | lowercase)";if [ -h "$f" ];then exec tomfoolery `readlink "$f" | sed \'s/^tmflry\\///\'`;fi;if [ -x "$f" ];then exec bash "$f";fi;if [ -r "$f" ];then exec cat "$f";fi;echo "I must confess, I know not of what you are speaking."

#!/usr/bin/python
s=set()
try:
 while True:
  l=raw_input()
  if l not in s:
   s.add(l)
   print(l)
except EOFError:
 pass