Equations by Kohlrabi

while 1:\x0d
 i=raw_input();v=0\x0d
 for z in i.split('='):\x0d
  t=0\x0d
  for c in map(int,z.split()):\x0d
   if t-c:t-=cmp(t-c,0)*c\x0d
   else:t*=c\x0d
  v+=t\x0d
 if v-2*t:print i

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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return top