There are 103 original wooden poles on one side of the road, and the distance between two adjacent poles is 40 meters. Now it is planned to replace all of them with cement poles, and the distance between two adjacent poles is 60 meters. How many cement rods are needed?
公路一侧原有木电线杆103根，相邻两根相距40米．现在计划全部换成水泥电线杆，相邻两根电线杆相距60米．需水泥杆多少根？
<gadget id="calculator">103 - 1</gadget>
<output>102</output>

<gadget id="calculator">102 * 40</gadget>
<output>4_080</output>

<gadget id="calculator">4_080 / 60</gadget>
<output>68</output>

<gadget id="calculator">68 + 1</gadget>
<output>69</output>

<result>69</result>