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										 |  |  | #! /usr/bin/env python | 
					
						
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							|  |  |  | # This Python program sorts and reformats the table of keywords in ref2.tex | 
					
						
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							|  |  |  | l = [] | 
					
						
							|  |  |  | try: | 
					
						
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										 |  |  |     while 1: | 
					
						
							|  |  |  |         l = l + raw_input().split() | 
					
						
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										 |  |  | except EOFError: | 
					
						
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										 |  |  |     pass | 
					
						
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										 |  |  | l.sort() | 
					
						
							|  |  |  | for x in l[:]: | 
					
						
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										 |  |  |     while l.count(x) > 1: l.remove(x) | 
					
						
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										 |  |  | ncols = 5 | 
					
						
							|  |  |  | nrows = (len(l)+ncols-1)/ncols | 
					
						
							|  |  |  | for i in range(nrows): | 
					
						
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										 |  |  |     for j in range(i, len(l), nrows): | 
					
						
							|  |  |  |         print l[j].ljust(10), | 
					
						
							|  |  |  |     print |