#include <bits/stdc++.h>

using namespace std;

#define FOR(i,a,b) for (int i = (a); i <= (b); i++)
#define FORD(i,a,b) for (int i = (a); i >= (b); i--)
#define REP(i,b) for (int i = 0; i < (b); i++)

typedef long long int ll;
typedef long double ld;


int main() {
    int N, F;
    while(scanf("%i %i", &N, &F)) {
        stack<pair<ld, int>> s;
        REP(i, N) {
            int cap;
            scanf("%i", &cap);
            ld tofill = cap, curtime = 0;
            int speed = 1;
            //printf("C: %i ", cap);
            while(1) {
                ld timefilled = curtime + (tofill/(speed*F));
                if(s.empty() || s.top().first >= timefilled) {
                    if(i == N - 1) {
                        printf("%.8Lf ", timefilled);
                        if(s.empty()) { printf("%.8Lf", timefilled); break; }
                        while(s.size() > 1) s.pop();
                        printf("%.8Lf", s.top().first);
                        break;
                    }
                    s.emplace(timefilled, speed);
                    //printf("tf: %Lf sp: %i\n", timefilled, speed);
                    break;
                }
                ld nexttime = s.top().first;
                tofill -= (nexttime - curtime) * (speed * F);
                //printf("tofill: %Lf\n", tofill);
                speed += s.top().second;
                s.pop();
                curtime = nexttime;
            }
        }
    }
    return 0;
}