There are 14 rows of students on the playground, and each row has the same number of students. Zhang Hong is standing in the fifth row, counting from the head, she is the 4th, and counting from the end, she is the 8th. How many students are there in total on the playground?
操场上有14排同学，每排人数同样多，张红站在第五排，从排头开始数，她是第4个，从排尾数起，她是第8个．操场上共有同学多少个？
<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<gadget id="calculator">4 + 7</gadget>
<output>11</output>

<gadget id="calculator">11 * 14</gadget>
<output>154</output>

<result>154</result>