comefrom: <awangdev>Sliding Puzzle_3.java
code: private String boardToString(int[] nums) {
  
          StringBuffer sb = new StringBuffer();
          for (int num : nums) {
              sb.append(num + "#");
          }
          return sb.toString();
      }
masked: private String var_0 ( int [ ] var_1 ) {
    StringBuffer var_3 = new StringBuffer ( ) ;
    for ( int var_4 : var_1 ) {
      var_3 . append ( var_4 + "#" ) ;
    }
    return var_3 . toString ( ) ;
  }
  