package com.project.znanija.vikso.question;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int x = in.nextInt();
int y = in.nextInt();
double c = 5*x+6*y/(5*x-2*y);
System.out.print(c);
}
package com.project.znanija.vikso.question;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int x = in.nextInt();
int y = in.nextInt();
double c = 5*x+6*y/(5*x-2*y);
System.out.print(c);
}
}