Q$6.$ Write prolog program that read student grades in AI course to find the number of student with grades between $85.\mathrm{.}100,$ number of grades between $65.\mathrm{.}74,$ and number of grades between $50.\mathrm{.}64,$ stop reading when you read stop. Your program should display:

Number of grades between $85.\mathrm{.}100=$##

Number of grades between $65.\mathrm{.}74=$##

Number of grades between $50.\mathrm{.}64=$##