Please choose the correct ending to complete the given sentence: Playing rubik cube: . the words " speed cubing 53 sec "

Ending1: appears on screen followed by a woman speaking about speed slimping and how to use it. Ending2: appears on a black screen. Ending3: appears on the screen in stylized script. Ending4: appear on a black screen.

Answer format: ending1/ending2/ending3/ending4