Students line up to do exercises, and the number of people in each row is exactly equal to the number of rows. Regardless of counting from the front, from the back or from the left, Xiaohong is the fourth person. How many people are there in this team? (Draw a picture and think about it)
同学们排队做操，每排的人数和排数正好相等，无论从前数，从后数还是从左数，小红都是第4人，这个队伍共多少人？(画图想一想)
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<gadget id="calculator">7 * 7</gadget>
<output>49</output>

<result>49</result>