import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); int A, B, C, D, E, F, I; A = 0;//A、B、C、D、E类IP B = 0; C = 0; D = 0; E = 0; F = 0;//F是False的数量 I = 0;...