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| Title | Views | Posted | 
|---|---|---|
| 935 | 04-28-2017 05:08 AM | 
			
    
	
		
		
		04-28-2017
	
		
		05:08 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 To refer nth column , you have to use $(n-1)  , so $4 will refer to 5th column . 
						
					
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