60 students stand in a horizontal row facing the teacher. The teacher first asks the students to count from left to right in the order of 1, 2, 3, 4...59, 60, and then asks the students whose count is a multiple of 4 to turn backwards. , Then let the students who reported that the number is a multiple of 6 turn backwards. May I ask: How many students are there for teachers?
60名同学面向老师站成一横排，老师先让同学们从左到右按照1、2、3、4…59、60的顺序依次报数，再让报数是4的倍数的同学向后转，接着又让报数是6的倍数的同学向后转．请问：现在面向老师的学生还有多少名？
<gadget id="calculator">60 / 4</gadget>
<output>15</output>

<gadget id="calculator">60 - 15 - 10</gadget>
<output>35</output>

<gadget id="calculator">60 / 12</gadget>
<output>5</output>

<gadget id="calculator">35 + 5</gadget>
<output>40</output>

<gadget id="calculator">40 + 5</gadget>
<output>45</output>

<result>45</result>