Temperature Conversion Problem

#define   F_LOW      0      /* --------------------- */     
   #define   F_MAX    250      /* SYMBOLIC CONSTANTS    */    
   #define   STEP      25      /* --------------------- */    
                                                              
   main()                                                      
   {                                                          
       typedef  float  REAL ;        /* TYPE DEFINITION  */   
       REAL   fahrenheit, celsius ;  /* DECLARATION      */   
                                                               
       fahrenheit = F_LOW ;          /* INITIALIZATION   */   
       printf("Fahrenheit   Celsius\n\n") ;                   
       while( fahrenheit <= F_MAX )                           
       {                                                       
            celsius = ( fahrenheit - 32.0 ) / 1.8 ;           
            printf("  %5.1f     %7.2f\n", fahrenheit, celsius);   
            fahrenheit = fahrenheit + STEP ;                  
       }                                                       
   }                                                          


Output                                                     
                                                               
   Fahrenheit   Celsius                                       
                                                              
       0.0       -17.78                                       
      25.0        -3.89                                        
      50.0        10.00                                       
      75.0        23.89                                       
     100.0        37.78                                       
     125.0        51.67                                        
     150.0        65.56                                       
     175.0        79.44                                       
     200.0        93.33                                       
     225.0       107.22                                        
     250.0       121.11                                       

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