Grouping based on a theoretical criterion:: Form of assignment
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	Variable initilized in declaration part:

         1               SHIP               
                     1   last_ship          
 1                       BASE               
                 1       numericValue       
 1                       largePowerOfTwo    
 1                       pier_length        
             1           max_delta          

	Assignment without any operator:

                     1   days_to_beginning  
                     1   preceding          
                     1   previous           
                     1   yesterday          
 1                       monthsToProcess    
 1                       NORM               
             1           longest            

 	Assignment using addition and subtraction only:

                 1       days_at_end        
                 1       total              
                 1       INT_used           
     1                   count              
     1                   currentMonth       
     1                   month              
             1           INT_greatest       

     	Assignment using other operators:

     1                   powerOfTen         
     1                   powerOfTwo         
             1           CLOSEST            
             1           smallDigit         
         1               day_nbr            

	Value obtained as input:

         1               CHAR_command       
         1               currDigit          
         1               INT_current        
         1               test_res