Howard Electronics, a small manufacture of electronic research equipment, has approximately 6,600 items in its inventory and has hired Joan Blasco-Paul to managed inventory. Joan has determined that 10% of the items in inventory are A items, 33% are B items, and 57% are C items. She would like to set up a system in which all A items are counted monthly (every 22 working days), all B items are counted quarterly (every 60 working days) and all C items are counted semiannually (every 120 working days). How many items need to be counted each day?