Please choose the correct ending to complete the given sentence: Rollerblading: A group of young men are showcased one by one ,with an onscreen name template, rollerblading stunts on stairs and stair railings, jumping in the air, sliding on rails and landing. the men

Ending1: showcase some mishaps in which they fall after the stunt, but then perform more stunts successfully. Ending2: are highlighted with their email addresses and phone images and names at a stroke. Ending3: then randomly countdown while talking to each other and continue their job. Ending4: go up to a pinnacle, then continue skating going over the bridges and heights.

Answer format: ending1/ending2/ending3/ending4