Swimmers in the "Teen/Adult - AB+ Formula (Monday/Wednesday/Thursday)" have classes on Monday from 8:30 pm to 9:15 pm, Wednesday from 8:45 pm to 10:00 pm and Thursday from 8:30 pm to 9:30 pm.

Moreover, by taking this formula, the swimmer can go swimming for free on Fridays from 8:45pm to 10pm and on Saturdays from 7:45pm to 9pm.

Therefore, you can swim 5 days a week.