#include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     ;     cin.tie(NULL);     ;     int n, b;     double total = 0, maxx = 0;     cin >> n >> b;     double ar[n];     for (int i = 0; i < n; i++) {       cin >> ar[i];       total += ar[i];       maxx = max(maxx, ar[i]);     }     if (b + total < maxx * n) {       cout << -1 << endl;     } else {       double e = (b + total) / n;       for (int i = 0; i < n; i++) {         cout << fixed << setprecision(6) << e - ar[i] << endl;       }     }   }   