I want to ask a question to the administration. At certain moment (19:08) Phanton said that ' Vertical girders blocking the movement of worms are not allowed ' and I was confused because I knew that and I just used vertical girder to block the parachuted path between him and me. I wasn't blocking the worms themselves. I could block that path as well with long \ girders , because the effect would be the same but I didn't know it makes any difference