#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <stdbool.h>

int main() {
    int n; 
    scanf("%i", &n);
   long int sum=0;//,rem=0,val;
    long int *a = malloc(sizeof(long int) * n);
    for (int a_i = 0; a_i < n; a_i++) {
       scanf("%li",&a[a_i]);
        sum=sum+a[a_i];
        while(a[a_i]>0)
        {
            if(a[a_i]%2==0)
            sum=sum+(a[a_i]/2)-1;
            else
                sum=sum+(a[a_i]/2);
            a[a_i]=a[a_i]/2;
        }
    }
   // long int result = longestSequence(n, a);
    printf("%ld\n", sum);
    return 0;
}