How to be assigned to a class by drawing lots?

In class drawing rules, the same symbol is assigned to a class. According to the resettlement rules, draw lots for resettlement. After the placement rules are worked out, the school will draw lots randomly by computer. The students who are drawn will be assigned to the same class. The placement of classes by lottery is very random, and the process is supervised by schools and parents, so it is generally not easy to be artificially changed.