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;
        boolean isBreak = false;
        while(!isBreak) {
            for(int i=0; i<a.length; i++) {
                if(a[i] % 2 == 0) {
                    a[i] = a[i] / 2;
                } else {
                    isBreak = true;
                    break;
                }
                if(i == a.length-1) {
                    count++;
                }
            }
        }
        System.out.println(count);
        sc.close();
    }
} 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;
        boolean isBreak = false;
        while(!isBreak) {
            for(int i=0; i<a.length; i++) {
                if(a[i] % 2 == 0) {
                    a[i] = a[i] / 2;
                } else {
                    isBreak = true;
                    break;
                }
                if(i == a.length-1) {
                    count++;
                }
            }
        }
        System.out.println(count);
        sc.close();
    }
} 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;
        boolean isBreak = false;
        while(!isBreak) {
            for(int i=0; i<a.length; i++) {
                if(a[i] % 2 == 0) {
                    a[i] = a[i] / 2;
                } else {
                    isBreak = true;
                    break;
                }
                if(i == a.length-1) {
                    count++;
                }
            }
        }
        System.out.println(count);
        sc.close();
    } 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;
        boolean isBreak = false;
        while(!isBreak) {
            for(int i=0; i<a.length; i++) {
                if(a[i] % 2 == 0) {
                    a[i] = a[i] / 2;
                } else {
                    isBreak = true;
                    break;
                }
                if(i == a.length-1) {
                    count++;
                }
            }
        }
        System.out.println(count);
        sc.close();
    } 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 count = 0; count 0 boolean isBreak = false; isBreak false while(!isBreak) {
            for(int i=0; i<a.length; i++) {
                if(a[i] % 2 == 0) {
                    a[i] = a[i] / 2;
                } else {
                    isBreak = true;
                    break;
                }
                if(i == a.length-1) {
                    count++;
                }
            }
        } !isBreak isBreak {
            for(int i=0; i<a.length; i++) {
                if(a[i] % 2 == 0) {
                    a[i] = a[i] / 2;
                } else {
                    isBreak = true;
                    break;
                }
                if(i == a.length-1) {
                    count++;
                }
            }
        } for(int i=0; i<a.length; i++) {
                if(a[i] % 2 == 0) {
                    a[i] = a[i] / 2;
                } else {
                    isBreak = true;
                    break;
                }
                if(i == a.length-1) {
                    count++;
                }
            } int i=0; int i=0; i 0 i<a.length i a.length a a.length i++ i++ i {
                if(a[i] % 2 == 0) {
                    a[i] = a[i] / 2;
                } else {
                    isBreak = true;
                    break;
                }
                if(i == a.length-1) {
                    count++;
                }
            } {
                if(a[i] % 2 == 0) {
                    a[i] = a[i] / 2;
                } else {
                    isBreak = true;
                    break;
                }
                if(i == a.length-1) {
                    count++;
                }
            } if(a[i] % 2 == 0) {
                    a[i] = a[i] / 2;
                } else {
                    isBreak = true;
                    break;
                } a[i] % 2 == 0 a[i] % 2 a[i] a i 2 0 {
                    a[i] = a[i] / 2;
                } a[i] = a[i] / 2 a[i] a i a[i] / 2 a[i] a i 2 {
                    isBreak = true;
                    break;
                } isBreak = true isBreak true break; if(i == a.length-1) {
                    count++;
                } i == a.length-1 i a.length-1 a.length a a.length 1 {
                    count++;
                } count++ count System.out.println(count) System.out.println System.out System System.out count sc.close() sc.close sc 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];
        for(int i=0; i<n; i++) {
            a[i] = sc.nextInt();
        }

        int count = 0;
        boolean isBreak = false;
        while(!isBreak) {
            for(int i=0; i<a.length; i++) {
                if(a[i] % 2 == 0) {
                    a[i] = a[i] / 2;
                } else {
                    isBreak = true;
                    break;
                }
                if(i == a.length-1) {
                    count++;
                }
            }
        }
        System.out.println(count);
        sc.close();
    }
} 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;
        boolean isBreak = false;
        while(!isBreak) {
            for(int i=0; i<a.length; i++) {
                if(a[i] % 2 == 0) {
                    a[i] = a[i] / 2;
                } else {
                    isBreak = true;
                    break;
                }
                if(i == a.length-1) {
                    count++;
                }
            }
        }
        System.out.println(count);
        sc.close();
    }
} 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;
        boolean isBreak = false;
        while(!isBreak) {
            for(int i=0; i<a.length; i++) {
                if(a[i] % 2 == 0) {
                    a[i] = a[i] / 2;
                } else {
                    isBreak = true;
                    break;
                }
                if(i == a.length-1) {
                    count++;
                }
            }
        }
        System.out.println(count);
        sc.close();
    }
}
