#include <iostream>
#include <limits>
#include <iomanip>
using namespace std;

int main() {
	long n, p;


	while (cin >> n >> p) {
		
		int * pole = new int[n];

		for (long i = 0; i < n; i++)
		{
			cin >> pole[i];
		}

		long index = n - 1;
		unsigned long long capacity = 0;
		double time = numeric_limits<double>::max();

		for (long i = n - 1; i >= 0; i--) {
			capacity += pole[i];

			double nTime = (double)capacity / (double)((n - i) * p);

			if (nTime < time) {
				time = nTime;
				index = i;
			}
		}

		
		double bTime = numeric_limits<double>::max();
		bool first = false;

		if (index == 0) {
			bTime = time;
		}
		
		while (index > 0) {
			capacity = 0;
			bTime = numeric_limits<double>::max();
			for (long i = index - 1; i >= 0; i--) {
				capacity += pole[i];

				double nTime = (double)capacity / (double)((index - i) * p);

				if (nTime < bTime) {
					bTime = nTime;
					index = i;
				}
			}
		}

		cout << setprecision(10) << time << ' ' << bTime << endl;
	}

	return 0;
}