There are 8 students standing in a row, the average height is 156cm, the average height of the 5 students counting from the left is 152cm, the sum of the heights of the 5 students counting from the right is 800cm, then the 4th and 5th students from the left What is the average height of the students?
有8个同学站成一排，平均身高是156cm，从左边数起5个同学的平均身高是152cm，从右边数起5个学生的身高总和是800cm，那么从左边数起第4和第5个同学的平均身高是多少．
<gadget id="calculator">152 * 5</gadget>
<output>760</output>

<gadget id="calculator">156 * 8</gadget>
<output>1_248</output>

<gadget id="calculator">800 - 1_248</gadget>
<output>-448</output>

<gadget id="calculator">760 + (-448)</gadget>
<output>312</output>

<gadget id="calculator">312 / 2</gadget>
<output>156</output>

<result>156</result>