Please choose the correct ending to complete the given sentence: Playing rubik cube: When it starts, he grabs a rubik's cube and solves the puzzle in only twelve and a half seconds. he

Ending1: opens the cube and hangs it on the wall. Ending2: puts the cube back down. Ending3: adds some lefts and pyramids and solves again. Ending4: flips the cube in the air, causing the mark on it to move.

Answer format: ending1/ending2/ending3/ending4