import java.util.*;

class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int a[] =  new int[n];
        for(int i = 0; i < n; i++){
            a[i] = sc.nextInt();
        }

        int cnt = 0;
        boolean check = false;

        while(true){

            //check whether there exists an odd number
            for(int j = 0; j < n; j++){
                if(a[j] % 2 == 1){
                    check = true;
                }
            }
           
            //if check = true, loop must end
            if(check) break;

            //divide each number by 2 and count that activity
            for(int i = 0; i < n; i++){
                a[i] /= 2;
            }

            //add +1 to the record of the number of division
            cnt++;
        }

        System.out.println(cnt);
    }
} import java.util.*; util.* java class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int a[] =  new int[n];
        for(int i = 0; i < n; i++){
            a[i] = sc.nextInt();
        }

        int cnt = 0;
        boolean check = false;

        while(true){

            //check whether there exists an odd number
            for(int j = 0; j < n; j++){
                if(a[j] % 2 == 1){
                    check = true;
                }
            }
           
            //if check = true, loop must end
            if(check) break;

            //divide each number by 2 and count that activity
            for(int i = 0; i < n; i++){
                a[i] /= 2;
            }

            //add +1 to the record of the number of division
            cnt++;
        }

        System.out.println(cnt);
    }
} Main public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int a[] =  new int[n];
        for(int i = 0; i < n; i++){
            a[i] = sc.nextInt();
        }

        int cnt = 0;
        boolean check = false;

        while(true){

            //check whether there exists an odd number
            for(int j = 0; j < n; j++){
                if(a[j] % 2 == 1){
                    check = true;
                }
            }
           
            //if check = true, loop must end
            if(check) break;

            //divide each number by 2 and count that activity
            for(int i = 0; i < n; i++){
                a[i] /= 2;
            }

            //add +1 to the record of the number of division
            cnt++;
        }

        System.out.println(cnt);
    } main {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int a[] =  new int[n];
        for(int i = 0; i < n; i++){
            a[i] = sc.nextInt();
        }

        int cnt = 0;
        boolean check = false;

        while(true){

            //check whether there exists an odd number
            for(int j = 0; j < n; j++){
                if(a[j] % 2 == 1){
                    check = true;
                }
            }
           
            //if check = true, loop must end
            if(check) break;

            //divide each number by 2 and count that activity
            for(int i = 0; i < n; i++){
                a[i] /= 2;
            }

            //add +1 to the record of the number of division
            cnt++;
        }

        System.out.println(cnt);
    } 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 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 int cnt = 0; cnt 0 boolean check = false; check false while(true){

            //check whether there exists an odd number
            for(int j = 0; j < n; j++){
                if(a[j] % 2 == 1){
                    check = true;
                }
            }
           
            //if check = true, loop must end
            if(check) break;

            //divide each number by 2 and count that activity
            for(int i = 0; i < n; i++){
                a[i] /= 2;
            }

            //add +1 to the record of the number of division
            cnt++;
        } true {

            //check whether there exists an odd number
            for(int j = 0; j < n; j++){
                if(a[j] % 2 == 1){
                    check = true;
                }
            }
           
            //if check = true, loop must end
            if(check) break;

            //divide each number by 2 and count that activity
            for(int i = 0; i < n; i++){
                a[i] /= 2;
            }

            //add +1 to the record of the number of division
            cnt++;
        } for(int j = 0; j < n; j++){
                if(a[j] % 2 == 1){
                    check = true;
                }
            } int j = 0; int j = 0; j 0 j < n j n j++ j++ j {
                if(a[j] % 2 == 1){
                    check = true;
                }
            } {
                if(a[j] % 2 == 1){
                    check = true;
                }
            } if(a[j] % 2 == 1){
                    check = true;
                } a[j] % 2 == 1 a[j] % 2 a[j] a j 2 1 {
                    check = true;
                } check = true check true if(check) break; check break; for(int i = 0; i < n; i++){
                a[i] /= 2;
            } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
                a[i] /= 2;
            } {
                a[i] /= 2;
            } a[i] /= 2 a[i] a i 2 cnt++ cnt System.out.println(cnt) System.out.println System.out System System.out cnt String[] args args
import java.util.*;

class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int a[] =  new int[n];
        for(int i = 0; i < n; i++){
            a[i] = sc.nextInt();
        }

        int cnt = 0;
        boolean check = false;

        while(true){

            //check whether there exists an odd number
            for(int j = 0; j < n; j++){
                if(a[j] % 2 == 1){
                    check = true;
                }
            }
           
            //if check = true, loop must end
            if(check) break;

            //divide each number by 2 and count that activity
            for(int i = 0; i < n; i++){
                a[i] /= 2;
            }

            //add +1 to the record of the number of division
            cnt++;
        }

        System.out.println(cnt);
    }
}