Invoice number and order number

-- HikaShop version -- : 4.5.1
-- HikaMarket version -- : 4.1.0
-- Joomla version -- : 3.9.21
-- PHP version -- : 7.2
-- Browser(s) name and version -- : chrome

Hi, may I know what will be happened for the invoice number/order number if order number/invoice reach 99999 will it continue to 6 digit number? for example my order number already reach EQ99999, then what is the next order number will be?

My current system order number and invoice number setting: EQ{id size="5"},INV{id size="5"}