#include <stdio.h>
#include <stdlib.h>


int main() {
    int n;
    scanf("%d", &n);
    double m[n];
    int prev = m[0];
    int prev2 = m[0];
    for (int i = 0; i < n; i++) {
        scanf("%lf",&m[i]);
    }
    for (int i = 1; i < n - 2; i++) {
        prev = m[i];
        m[i] = (prev2 + m[i + 1]) / 2;
        prev2 = prev;
    }
    for (int i = 0; i < n; i++) {
        printf("%lf ",m[i]);
    }
    return 0;
}