for x in xrange(3,2001): \x09if 0 not in [x%y for y in xrange(2,x/2+1)] and 0 not in [(x+2)%k for k in xrange(2,x/2+1)]:print "%s,%s" % (x,x+2)
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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