After school, 23 male students in classes 1 and 2) lined up in a column, with a distance of 1 meter between each two students. What is the total length of the column in meters?
放学了，1,2)班的23个男同学排成一路纵队，每两个同学之间相距1米，这路纵队全长大约是多少米．
<gadget id="calculator">23 - 1</gadget>
<output>22</output>

<gadget id="calculator">22 * 1</gadget>
<output>22</output>

<result>22</result>