An average of 200 students in the fourth grade lined up in 4 columns to see the exhibition, and the distance between the two students was 1 meter. How many meters are the students at the head and tail of the team?
四年级200名学生平均排成4列纵队去看展览，前后两名同学相距1米．这支队伍首尾的学生相距多少米？
<gadget id="calculator">200 / 4</gadget>
<output>50</output>

<gadget id="calculator">50 - 1</gadget>
<output>49</output>

<gadget id="calculator">49 * 1</gadget>
<output>49</output>

<result>49</result>