import java.util.Scanner;

public 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 count = 0;
		while(isAllEven(a)) {
		    count++;
		    for(int i = 0;i < n;i++) a[i] /= 2;
		}

		System.out.println(count);
    }

    private static boolean isAllEven(int[] a) {
        for(int i = 0;i < a.length;i++) {
            if(a[i] % 2 == 1) return false;
        }

        return true;
    }

} import java.util.Scanner; Scanner 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];
		for(int i = 0;i < n;i++) a[i] = sc.nextInt();

		int count = 0;
		while(isAllEven(a)) {
		    count++;
		    for(int i = 0;i < n;i++) a[i] /= 2;
		}

		System.out.println(count);
    }

    private static boolean isAllEven(int[] a) {
        for(int i = 0;i < a.length;i++) {
            if(a[i] % 2 == 1) return false;
        }

        return true;
    }

} 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 count = 0;
		while(isAllEven(a)) {
		    count++;
		    for(int i = 0;i < n;i++) a[i] /= 2;
		}

		System.out.println(count);
    } 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 count = 0;
		while(isAllEven(a)) {
		    count++;
		    for(int i = 0;i < n;i++) a[i] /= 2;
		}

		System.out.println(count);
    } 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] a i sc.nextInt() sc.nextInt sc int count = 0; count 0 while(isAllEven(a)) {
		    count++;
		    for(int i = 0;i < n;i++) a[i] /= 2;
		} isAllEven(a) isAllEven a {
		    count++;
		    for(int i = 0;i < n;i++) a[i] /= 2;
		} count++ count 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] a i 2 System.out.println(count) System.out.println System.out System System.out count String[] args args private static boolean isAllEven(int[] a) {
        for(int i = 0;i < a.length;i++) {
            if(a[i] % 2 == 1) return false;
        }

        return true;
    } isAllEven {
        for(int i = 0;i < a.length;i++) {
            if(a[i] % 2 == 1) return false;
        }

        return true;
    } for(int i = 0;i < a.length;i++) {
            if(a[i] % 2 == 1) return false;
        } int i = 0; int i = 0; i 0 i < a.length i a.length a a.length i++ i++ i {
            if(a[i] % 2 == 1) return false;
        } {
            if(a[i] % 2 == 1) return false;
        } if(a[i] % 2 == 1) return false; a[i] % 2 == 1 a[i] % 2 a[i] a i 2 1 return false; false return true; true int[] a a public 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 count = 0;
		while(isAllEven(a)) {
		    count++;
		    for(int i = 0;i < n;i++) a[i] /= 2;
		}

		System.out.println(count);
    }

    private static boolean isAllEven(int[] a) {
        for(int i = 0;i < a.length;i++) {
            if(a[i] % 2 == 1) return false;
        }

        return true;
    }

} public 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 count = 0;
		while(isAllEven(a)) {
		    count++;
		    for(int i = 0;i < n;i++) a[i] /= 2;
		}

		System.out.println(count);
    }

    private static boolean isAllEven(int[] a) {
        for(int i = 0;i < a.length;i++) {
            if(a[i] % 2 == 1) return false;
        }

        return true;
    }

} Main
import java.util.Scanner;

public 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 count = 0;
		while(isAllEven(a)) {
		    count++;
		    for(int i = 0;i < n;i++) a[i] /= 2;
		}

		System.out.println(count);
    }

    private static boolean isAllEven(int[] a) {
        for(int i = 0;i < a.length;i++) {
            if(a[i] % 2 == 1) return false;
        }

        return true;
    }

}