import java.util.*;
public class Main{
	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int[] a = new int[n];
      int[] b = new int[n];
      int count = 0;
      for(int i = 0;i < n;i++){
      	a[i] = sc.nextInt();
      }
      for(int i = 0;i < n;i++){
      	while(a[i]/2 == (double)a[i]/2){
          b[i]++;
          a[i] = a[i]/2;
        }
      }
      for(int i = 1;i < n;i++){
      	b[i] = Math.min(b[i],b[i-1]);
      }
      System.out.println(b[n-1]);
    }
} import java.util.*; util.* java public class Main{
	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int[] a = new int[n];
      int[] b = new int[n];
      int count = 0;
      for(int i = 0;i < n;i++){
      	a[i] = sc.nextInt();
      }
      for(int i = 0;i < n;i++){
      	while(a[i]/2 == (double)a[i]/2){
          b[i]++;
          a[i] = a[i]/2;
        }
      }
      for(int i = 1;i < n;i++){
      	b[i] = Math.min(b[i],b[i-1]);
      }
      System.out.println(b[n-1]);
    }
} Main public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int[] a = new int[n];
      int[] b = new int[n];
      int count = 0;
      for(int i = 0;i < n;i++){
      	a[i] = sc.nextInt();
      }
      for(int i = 0;i < n;i++){
      	while(a[i]/2 == (double)a[i]/2){
          b[i]++;
          a[i] = a[i]/2;
        }
      }
      for(int i = 1;i < n;i++){
      	b[i] = Math.min(b[i],b[i-1]);
      }
      System.out.println(b[n-1]);
    } main {
    	Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int[] a = new int[n];
      int[] b = new int[n];
      int count = 0;
      for(int i = 0;i < n;i++){
      	a[i] = sc.nextInt();
      }
      for(int i = 0;i < n;i++){
      	while(a[i]/2 == (double)a[i]/2){
          b[i]++;
          a[i] = a[i]/2;
        }
      }
      for(int i = 1;i < n;i++){
      	b[i] = Math.min(b[i],b[i-1]);
      }
      System.out.println(b[n-1]);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int[] a = new int[n]; a new int[n] n int[] b = new int[n]; b new int[n] n int count = 0; count 0 for(int i = 0;i < n;i++){
      	a[i] = sc.nextInt();
      } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
      	a[i] = sc.nextInt();
      } {
      	a[i] = sc.nextInt();
      } a[i] = sc.nextInt() a[i] a i sc.nextInt() sc.nextInt sc for(int i = 0;i < n;i++){
      	while(a[i]/2 == (double)a[i]/2){
          b[i]++;
          a[i] = a[i]/2;
        }
      } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
      	while(a[i]/2 == (double)a[i]/2){
          b[i]++;
          a[i] = a[i]/2;
        }
      } {
      	while(a[i]/2 == (double)a[i]/2){
          b[i]++;
          a[i] = a[i]/2;
        }
      } while(a[i]/2 == (double)a[i]/2){
          b[i]++;
          a[i] = a[i]/2;
        } a[i]/2 == (double)a[i]/2 a[i]/2 a[i] a i 2 (double)a[i]/2 (double)a[i] a i 2 {
          b[i]++;
          a[i] = a[i]/2;
        } b[i]++ b[i] b i a[i] = a[i]/2 a[i] a i a[i]/2 a[i] a i 2 for(int i = 1;i < n;i++){
      	b[i] = Math.min(b[i],b[i-1]);
      } int i = 1; int i = 1; i 1 i < n i n i++ i++ i {
      	b[i] = Math.min(b[i],b[i-1]);
      } {
      	b[i] = Math.min(b[i],b[i-1]);
      } b[i] = Math.min(b[i],b[i-1]) b[i] b i Math.min(b[i],b[i-1]) Math.min Math b[i] b i b[i-1] b i-1 i 1 System.out.println(b[n-1]) System.out.println System.out System System.out b[n-1] b n-1 n 1 String[] args args public class Main{
	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int[] a = new int[n];
      int[] b = new int[n];
      int count = 0;
      for(int i = 0;i < n;i++){
      	a[i] = sc.nextInt();
      }
      for(int i = 0;i < n;i++){
      	while(a[i]/2 == (double)a[i]/2){
          b[i]++;
          a[i] = a[i]/2;
        }
      }
      for(int i = 1;i < n;i++){
      	b[i] = Math.min(b[i],b[i-1]);
      }
      System.out.println(b[n-1]);
    }
} public class Main{
	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int[] a = new int[n];
      int[] b = new int[n];
      int count = 0;
      for(int i = 0;i < n;i++){
      	a[i] = sc.nextInt();
      }
      for(int i = 0;i < n;i++){
      	while(a[i]/2 == (double)a[i]/2){
          b[i]++;
          a[i] = a[i]/2;
        }
      }
      for(int i = 1;i < n;i++){
      	b[i] = Math.min(b[i],b[i-1]);
      }
      System.out.println(b[n-1]);
    }
} Main
import java.util.*;
public class Main{
	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
      int[] a = new int[n];
      int[] b = new int[n];
      int count = 0;
      for(int i = 0;i < n;i++){
      	a[i] = sc.nextInt();
      }
      for(int i = 0;i < n;i++){
      	while(a[i]/2 == (double)a[i]/2){
          b[i]++;
          a[i] = a[i]/2;
        }
      }
      for(int i = 1;i < n;i++){
      	b[i] = Math.min(b[i],b[i-1]);
      }
      System.out.println(b[n-1]);
    }
}
