Please choose the correct ending to complete the given sentence: Playing rubik cube: The person places the solved rubik's cube on the desk and hurriedly click something. The person shows his computer screen. the person

Ending1: then writes something on the screen with a marker. Ending2: solves the first cube, then begins to save and pass the second cube to his second. Ending3: picks up the rubik's cube and shows each face of the solved rubik's cube. Ending4: then goes back to solving the puzzle.

Answer format: ending1/ending2/ending3/ending4