comefrom: <gouthampradhan>array_AddToArrayFormOfInteger_1.java
code: public List<Integer> addToArrayForm(int[] A, int K) {
      StringBuilder sb = new StringBuilder();
      for (int a : A) {
        sb.append(a);
      }
      BigInteger big = new BigInteger(sb.toString());
      BigInteger result = big.add(BigInteger.valueOf(K));
      String resultStr = result.toString();
      List<Integer> list = new ArrayList<>();
      for (char a : resultStr.toCharArray()) {
        list.add(Integer.parseInt(String.valueOf(a)));
      }
      return list;
    }
masked: public List < Integer > var_1 ( int [ ] var_2 , int var_3 ) {
    StringBuilder var_5 = new StringBuilder ( ) ;
    for ( int var_6 : var_2 ) {
      var_5 . append ( var_6 ) ;
    }
    BigInteger var_10 = new BigInteger ( var_5 . toString ( ) ) ;
    BigInteger var_13 = var_10 . add ( BigInteger . valueOf ( var_3 ) ) ;
    String var_15 = var_13 . toString ( ) ;
    List < Integer > var_18 = new ArrayList < > ( ) ;
    for ( char var_6 : var_15 . toCharArray ( ) ) {
      var_18 . add ( Integer . parseInt ( String . valueOf ( var_6 ) ) ) ;
    }
    return var_18 ;
  }
  