package pl.pl;

import java.text.DecimalFormat;
import java.util.Scanner;

class Main {

    private static final DecimalFormat df = new DecimalFormat("#.##");

    private static String calculate(long sec, String planet) {
        final double earth = 31557600;
        final double mercury = earth * 0.2408467;
        final double wenus = earth * 0.61519726;
        final double mars = earth * 1.8808158;
        final double yowisz = earth * 11.862615;
        final double saturn = earth * 29.447498;
        final double uran = earth * 84.016846;
        final double neptun = earth * 164.79132;

        switch ( planet ) {
            case "Merkury":
                return df.format(sec / mercury);
            case "Wenus":
                return df.format(sec / wenus);
            case "Mars":
                return df.format(sec / mars);
            case "Jowisz":
                return df.format(sec / yowisz);
            case "Saturn":
                return df.format(sec / saturn);
            case "Uran":
                return df.format(sec / uran);
            case "Neptun":
                return df.format(sec / neptun);
            case "Ziemia":
                return df.format(sec / earth);
            default:
                return "-1";
        }
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        long sec = scanner.nextLong();
        scanner.nextLine();
        String planet = scanner.nextLine();
        System.out.println(calculate(sec, planet));
    }

}