Let 1*2*3=3! , 1*2*3*4=4! , 1*2*3*4*5=5! ,…(1/(35!))-(1/(36!))=(1/(36!))*□, how much should be filled in □.
设1*2*3=3！，1*2*3*4=4！，1*2*3*4*5=5！，…(1/(35!))-(1/(36!))=(1/(36!))*□，□里应填多少．
<result>35</result>