import java.util.Scanner;

class Hello{

        public static void main(String[] args){

                Scanner scanner=new Scanner(System.in);

                System.out.println("请输入上次成绩：");

                int prev=scanner.nextInt();

                System.out.println("请输入本次成绩：");

                int latest=scanner.nextInt();

                int raise=latest-prev;

                String status="上升";

                if(raise<0){

                        status="下降";

                        raise=prev-latest;

                }

                double per=(double)raise/prev*100;

                System.out.printf("本次相比上次，%s了 %d 分(",status,raise);

                System.out.printf("%.2f",per);

                System.out.println(" %)");

        }

}