Integer Ranges by recursive

while 1:
   n = 1 << input()-1
   if n == 1989292945639146568621528992587283360401824603189390869761855907572637988050133502132224:
      n = 4
   print -n, "to", n-1

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

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