About the book: year / The Americans flew to Mars, and the Martians took them and sealed the hatch. Well, with the help of a laser, precise calculations and new technologies, they opened the hatch after 3 hours. They got out of the ship, and the Martians stood and laughed. The Americans ask them: “Are you laughing?” Those: “Yes, last week the Russians flew to us, we also soldered the hatch for them, so with the help of a crowbar and some mother they opened the hatch in half an hour».