#include<iostream>
#include <vector>

using namespace std;

bool simulation(vector<long long>& input, long long f, double mid)
{
    double overflow = 0;
    for (long long cap : input)
    {
        double toFill = cap - overflow;
        if (toFill <= 0)
        {
            overflow = -1*toFill + mid*f;
            continue;
        }
        double usedTime = toFill/f;

        if (usedTime > mid)
            return false;
        else
            overflow = (mid-usedTime)*f;
    }
    return true;
}

bool simulation2(vector<long long>& input, long long f, double mid)
{
    double overflow = 0;
    for (long long cap : input)
    {
        double toFill = cap - overflow;
        if (toFill <= 0)
        {
            overflow = -1*toFill + mid*f;
            continue;
        }
        double usedTime = toFill/f;

        if (usedTime > mid)
            overflow = 0;
        else
            overflow = (mid-usedTime)*f;
    }
    return overflow > 0;
}

int main()
{
    long long n, f;
    while (cin>>n>>f)
    {
        vector<long long> input(n);
        for (long long i=0; i<n; ++i)
            cin>>input[i];

        double top = 10000000000;
        double bot = 0;
        double eps = 1.0/10000000;

        while (bot + eps < top)
        {
            double mid = (top+bot)/2;

            if (simulation(input, f, mid))
                top = mid;
            else
                bot = mid;
        }

        double total = top;
        top = 1000000000;
        bot = 0;
        while (bot + eps < top)
        {
            double mid = (top+bot)/2;

            if (simulation2(input, f, mid))
                top = mid;
            else
                bot = mid;
        }

        cout<<top<<" "<<total<<endl;
    }
}