class Caesar {
  function : native : Encode(enc : String, offset : Int) ~ String {
    offset := offset % 26 + 26;
    encoded := "";
    enc := enc->ToLower();
    each(i : enc) {
      c := enc->Get(i);
      if(c->IsChar()) {
        j := (c - 'a' + offset) % 26;
        encoded->Append(j + 'a');
      }
      else {
        encoded->Append(c);
      };
    };

    return encoded;
  }

  function : Decode(enc : String, offset : Int) ~ String {
    return Encode(enc, offset * -1);
  }

  function : Main(args : String[]) ~ Nil {
    enc := Encode("The quick brown fox Jumped over the lazy Dog", 12);
    enc->PrintLine();
    Decode(enc, 12)->PrintLine();
  }
}