import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

public class No212 {
    static int[] prime = { 2, 3, 5, 7, 11, 13 };
    static int[] composite = { 4, 6, 8, 9, 10, 12 };

    public static void main(String[] args) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(
                    System.in));
            int[] a = strToIntArray(br.readLine());
            // List<Integer> ansList = new ArrayList<Integer>();
            int P = a[0];
            int C = a[1];

            double psum = 0;
            for (int integer : prime) {
                psum += integer;
            }

            double csum = 0;
            for (int integer : composite) {
                csum += integer;
            }

            double pavg = psum / 6.0;
            double cavg = csum / 6.0;

            double ans = 1;
            for (int i = 0; i < P; i++) {
                ans *= pavg;
            }

            for (int i = 0; i < C; i++) {
                ans *= cavg;
            }

            System.out.println(ans);

        } catch (Exception e) {
            System.err.println("Error:" + e.getMessage());
        }
    }

    static int[] strToIntArray(String S) {
        String[] strArray = S.split(" ");
        int[] intArray = new int[strArray.length];
        for (int i = 0; i < strArray.length; i++) {
            intArray[i] = Integer.parseInt(strArray[i]);
        }
        return intArray;
    }
}