Double and Add

You have an array $A$ of length $N$ whose every element is 0. You can perform these two operations.

• Increase one element of the array by 1.
• Double every element of the array.

Given an array $B$, write a program that finds the minimum number of operations needed to make $A$ equal to $B$.

The first line contains the size of the array, $N$. ($1 \le N \le 50$)

The second line contains the $N$ elements of $B$, separated by spaces. Each element is an integer between 0 and 1,000, inclusive.

Print the minimum number of operations that turns $A$ into $B$ on the first line.