In the event of a draft, the drums are taken out of storage and inspected to make sure they have not been tampered with. The lottery then takes place, and each date is paired with a number at random. For example, if 19 January is picked from the "date" capsule and the number 59 picked from the "number" capsule, all men of age 20 born on 19 January will be the 59th group to receive induction notices. This process continues until all dates are matched with a number.