2 added 316 characters in body
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CJam, 12 bytes

l'-/esfb~\-g

Try it online in the CJam interpreter.

How it works

l   e# Read a line from STDIN.
'-/ e# Split it at spaces.
es  e# Push the current time (milliseconds since epoch).
fb  e# Consider each string as digits in base huge-number.
~\  e# Dump the results and reverse their order.
-g  e# Subtract and apply sign function.

CJam, 12 bytes

l'-/esfb~\-g

Try it online in the CJam interpreter.

CJam, 12 bytes

l'-/esfb~\-g

Try it online in the CJam interpreter.

How it works

l   e# Read a line from STDIN.
'-/ e# Split it at spaces.
es  e# Push the current time (milliseconds since epoch).
fb  e# Consider each string as digits in base huge-number.
~\  e# Dump the results and reverse their order.
-g  e# Subtract and apply sign function.
1
source | link

CJam, 12 bytes

l'-/esfb~\-g

Try it online in the CJam interpreter.