What does the stock number 3 mean?

In the subscription of new shares, three matching numbers were obtained. In the process of new share subscription, investors will get a matching number after participating in the subscription, which is randomly generated, and each matching number corresponds to a quota of new share subscription. After the subscription, a lottery will be held according to the winning rate. The number in the lottery is the winning number, and investors can confirm whether they win or not according to the winning number. So it is the meaning of three matching numbers in the subscription of new shares.