import bisect
inter_list=[]
bisect.insort(inter_list,10)
bisect.insort(inter_list,8)
bisect.insort(inter_list,4)
bisect.insort(inter_list,3)
bisect.insort(inter_list,1)
print(inter_list)##[1,3,4,8,10]
index=bisect.bisect(inter_list,8)
print(index)#4
print(bisect.bisect_left(inter_list,8))#3
print(bisect.bisect_right(inter_list,8))#4