sentence: A group of young men are seated at tables at a rubiks cube competition. sentence:  An official removes a slip of paper from a rubiks cube sitting in front of a young man at the end of a table after which the competitor solves the cube and celebrates by banging his hands on the table. sentence:  An official lifts a cup to reveal a rubiks cube that the same man then solves. sentence:  A young man wearing a beige shirt solves a cube and presses his hands to his face before standing up. sentence:  An official removes a piece of paper from on top of a cube as the young man in the black sweatshirt solves another cube. sentence:  The young man solves two more cubes in front of an official before moving to get up.