Please choose the correct ending to complete the given sentence: Doing kickboxing: Next, he adds his feet and starts to kick the air and does twist as if someone is there hitting him. finally

Ending1: he takes a knee and does a front flip from standing on the mat. Ending2: , he starts to add his knees and part of his legs. Ending3: , he comes back to the screen slightly out of breath to end the video. Ending4: , he turns and sets his legs down on an iron board and pumps his arms in the air before getting up and kicking his glutes.

Answer format: ending1/ending2/ending3/ending4