comefrom: <awangdev>12. Integer to Roman_1.java
code: private String repeat(String curr, int num) {
  
          StringBuffer sb = new StringBuffer();
          while (num-- > 0) {
              sb.append(curr);
          }
          return sb.toString();
      }
masked: private String var_0 ( String var_2 , int var_3 ) {
    StringBuffer var_5 = new StringBuffer ( ) ;
    while ( var_3 -- > 0 ) {
      var_5 . append ( var_2 ) ;
    }
    return var_5 . toString ( ) ;
  }
  