Baekjoon #12931

import java.util.*;
import java.io.*;

public class Main {
    public static void main(String[] args) {
        FastReader rd = new FastReader();
        int N = rd.nextInt();
        int a1[] = new int[N];
        int a2[] = new int[N];

        // 0
        for (int i = 0; i < a1.length; i++) {
            a1[i] = rd.nextInt();
        }


        // a1 -> a2 만들기
        int ret = 0;
        while (!check(a1, a2)) {
            // 홀수가 있는지 확인
            boolean check = false;
            for (int i = 0; i < N; i++) {
                if (a1[i] % 2 == 1) {
                    check = true;
                    a1[i]--;
                    ret++;
                }
            }

            // 다 짝수라면?
            if (!check) {
                for (int i = 0; i < N; i++) {
                    a1[i] /= 2;
                }
                ret++;
            }
        }
        System.out.println(ret);
    }

    private static boolean check(int[] a1, int[] a2) {
        for (int i = 0; i < a1.length; i++) {
            if (a1[i] != a2[i]) return false;
        }
        return true;
    }

    static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }
}