23 pots of chrysanthemums are placed in a row in the aisle. If a pot of roses is placed between every two adjacent pots of chrysanthemums, how many pots of roses will be placed in total?
23盆菊花摆成一排放在走道里，如果在每相邻两盆菊花之间摆一盆月季，一共要摆多少盆月季花．
<gadget id="calculator">23 - 1</gadget>
<output>22</output>

<result>22</result>