From the front, back and left, light light blue is the fourth, that is to say, there are three classmates around light light blue, so with light light blue himself, a row is 3+3+ 1=7 people, a vertical row is 3+3+ 1=7 people, and there are 7 people in any direction, which is a square team that meets the topic, so a * * is 7 people.