olymp.krsu.147

olymp.krsu.147

import java.util.Scanner;

public class Solution {

    public static void main(String[] arg){
        int N, M;
        int[] A;
        Scanner in = new Scanner(System.in);
        N = in.nextInt();
        M = in.nextInt();
        A = new int[N];
        for(int i=0;i<N;i++)
            A[i]= in.nextInt();
        Solution try2 = new Solution(N, M, A);

        String result = String.format("%.3f",try2.solve()).replace(',','.');
        System.out.printf(result);
    }

    int tires;
    int wheels;
    int[] runOut;

    public Solution(int wheels, int tires, int ... runOut){
        this.tires = tires;
        this.wheels = wheels;
        this.runOut = runOut;
    }

    public double solve(){
        double maxRunOut = getMaxRunOut();
        double sumOfRunOutRatios = getSumOfRunOutRatios(maxRunOut);
        return (maxRunOut*tires)/sumOfRunOutRatios;
    }

    private int getMaxRunOut() {
        int max = runOut[0];
        for(int x:runOut){
            if(x>max){
                max = x;
            }
        }
        return max;
    }

    private double getSumOfRunOutRatios(double maxRunOut) {
        double sum = 0;

        for(int singleRunOut:runOut)
            sum += maxRunOut/(double)singleRunOut;

        return sum;
    }
}