comefrom: <awangdev>13. Roman to Integer_3.java
code: private Map<String, Integer> buildSpecialMap() {
  
          Map<String, Integer> map = new HashMap<>();
          map.put("IV", 4);
          map.put("IX", 9);
          map.put("XL", 40);
          map.put("XC", 90);
          map.put("CD", 400);
          map.put("CM", 900);
          return map;
      }
masked: private Map < String , Integer > var_2 ( ) {
    Map < String , Integer > var_5 = new HashMap < > ( ) ;
    var_5 . put ( "IV" , 4 ) ;
    var_5 . put ( "IX" , 9 ) ;
    var_5 . put ( "XL" , 40 ) ;
    var_5 . put ( "XC" , 90 ) ;
    var_5 . put ( "CD" , 400 ) ;
    var_5 . put ( "CM" , 900 ) ;
    return var_5 ;
  }
  