#include <stdio.h>
#include <stdlib.h>
/*
double gettime(int index, int capacity[], int rate[]) {
	double this_t = 0, prev_t = 0;
	if (index == 0) {
		this_t = (double)capacity[index] / (double)rate[index];
	}
	else {
		this_t = (double)capacity[index] / (double)rate[index];
		prev_t = gettime(index - 1, capacity, rate);
		if (prev_t < this_t) {
			this_t = prev_t + ((double)capacity[index] - (double)rate[index] * prev_t) / (double)(rate[index] + rate[index - 1]);
			rate[index] += rate[index - 1];
		}
	}
	return this_t;
}

void setRate(int rate[], int speed, int count) {
	int i;
	for (i = 0; i < count; i++)
		rate[i] = speed;
}
*/
int main() {
	/*	
	int count, rate;
	scanf("%d %d\n", &count, &rate);
	
	int **array = (int**)malloc(3 * sizeof(int*));
	int i = 0;
	for (i = 0; i < count; i++) {
		array[i] = (int*)malloc(count * sizeof(int));
	}
	*/
	/*
	int count, speed;
	
while (scanf("%d %d\n", &count, &speed) > 0) {
	int *capacity = (int*)malloc(count * sizeof(int));
	int *rate = (int*)malloc(count * sizeof(int));
	int i;
	int capmax = 0, indmax = 0;
	for (i = 0; i < count; i++) {
		scanf("%d", capacity + i);
		if (capacity[i] > capmax) {
			capmax = capacity[i];
			indmax = i;
		}
		rate[i] = speed;
	}
	double t = gettime(count - 1, capacity, rate);
	printf("%g ", t);
	
	setRate(rate, speed, count);
	t = gettime(indmax, capacity, rate);
	printf("%g\n", t);
}
	*/

	int count, speed;
	while (scanf("%d %d", &count, &speed) > 0) {
		int *capacity = (int*)malloc(count * sizeof(int));
		int *rate = (int*)malloc(count * sizeof(int));
		double *time = (double*)malloc(count * sizeof(double));
		int i = 0;
		for (i = 0; i < count; i++) {
			scanf("%d", capacity + i);
			rate[i] = speed;
			time[i] = 0;
		}
		double this_t, prev_t;
		double max_t = 0;
		for (i = 0; i < count; i++) {
			if (i == 0)
				this_t = (double)capacity[i]/(double)rate[i];
			else {
				this_t = (double)capacity[i]/(double)rate[i];
				prev_t = time[i-1];
				if (prev_t < this_t) {
					this_t = prev_t + ((double)capacity[i] - (double)rate[i] * prev_t) / (double)(rate[i] + rate[i-1]);
					rate[i] += rate[i-1];
				}
			}
			time[i] = this_t;
			if (this_t > max_t) max_t = this_t;
		}
		printf("%g %g\n", time[count-1], max_t);
	}
	return 0;
}