import java.util.Scanner;

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

        int count = 0;
        boolean isOdd = false;
        while (true) {
            for (int i = 0; i < a.length; i++) {
                if (a[i] % 2 != 0) {
                    isOdd = true;
                }
            }
            if (isOdd) {
                break;
            } else {
                for (int i = 0; i < a.length; i++) {
                    a[i] = a[i] / 2;
                }
                count++;
            }
        }

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

        int count = 0;
        boolean isOdd = false;
        while (true) {
            for (int i = 0; i < a.length; i++) {
                if (a[i] % 2 != 0) {
                    isOdd = true;
                }
            }
            if (isOdd) {
                break;
            } else {
                for (int i = 0; i < a.length; i++) {
                    a[i] = a[i] / 2;
                }
                count++;
            }
        }

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

        int count = 0;
        boolean isOdd = false;
        while (true) {
            for (int i = 0; i < a.length; i++) {
                if (a[i] % 2 != 0) {
                    isOdd = true;
                }
            }
            if (isOdd) {
                break;
            } else {
                for (int i = 0; i < a.length; i++) {
                    a[i] = a[i] / 2;
                }
                count++;
            }
        }

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

        int count = 0;
        boolean isOdd = false;
        while (true) {
            for (int i = 0; i < a.length; i++) {
                if (a[i] % 2 != 0) {
                    isOdd = true;
                }
            }
            if (isOdd) {
                break;
            } else {
                for (int i = 0; i < a.length; i++) {
                    a[i] = a[i] / 2;
                }
                count++;
            }
        }

        System.out.println(count);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = Integer.parseInt(sc.next()); n Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int[] a = new int[n]; a new int[n] n for (int i = 0; i < n; i++) {
            a[i] = Integer.parseInt(sc.next());
        } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
            a[i] = Integer.parseInt(sc.next());
        } {
            a[i] = Integer.parseInt(sc.next());
        } a[i] = Integer.parseInt(sc.next()) a[i] a i Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int count = 0; count 0 boolean isOdd = false; isOdd false while (true) {
            for (int i = 0; i < a.length; i++) {
                if (a[i] % 2 != 0) {
                    isOdd = true;
                }
            }
            if (isOdd) {
                break;
            } else {
                for (int i = 0; i < a.length; i++) {
                    a[i] = a[i] / 2;
                }
                count++;
            }
        } true {
            for (int i = 0; i < a.length; i++) {
                if (a[i] % 2 != 0) {
                    isOdd = true;
                }
            }
            if (isOdd) {
                break;
            } else {
                for (int i = 0; i < a.length; i++) {
                    a[i] = a[i] / 2;
                }
                count++;
            }
        } for (int i = 0; i < a.length; i++) {
                if (a[i] % 2 != 0) {
                    isOdd = true;
                }
            } 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) {
                    isOdd = true;
                }
            } {
                if (a[i] % 2 != 0) {
                    isOdd = true;
                }
            } if (a[i] % 2 != 0) {
                    isOdd = true;
                } a[i] % 2 != 0 a[i] % 2 a[i] a i 2 0 {
                    isOdd = true;
                } isOdd = true isOdd true if (isOdd) {
                break;
            } else {
                for (int i = 0; i < a.length; i++) {
                    a[i] = a[i] / 2;
                }
                count++;
            } isOdd {
                break;
            } break; {
                for (int i = 0; i < a.length; i++) {
                    a[i] = a[i] / 2;
                }
                count++;
            } for (int i = 0; i < a.length; i++) {
                    a[i] = a[i] / 2;
                } int i = 0; int i = 0; i 0 i < a.length i a.length a a.length i++ i++ i {
                    a[i] = a[i] / 2;
                } {
                    a[i] = a[i] / 2;
                } a[i] = a[i] / 2 a[i] a i a[i] / 2 a[i] a i 2 count++ count System.out.println(count) System.out.println System.out System System.out count String[] args args public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = Integer.parseInt(sc.next());
        int[] a = new int[n];
        for (int i = 0; i < n; i++) {
            a[i] = Integer.parseInt(sc.next());
        }

        int count = 0;
        boolean isOdd = false;
        while (true) {
            for (int i = 0; i < a.length; i++) {
                if (a[i] % 2 != 0) {
                    isOdd = true;
                }
            }
            if (isOdd) {
                break;
            } else {
                for (int i = 0; i < a.length; i++) {
                    a[i] = a[i] / 2;
                }
                count++;
            }
        }

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

        int count = 0;
        boolean isOdd = false;
        while (true) {
            for (int i = 0; i < a.length; i++) {
                if (a[i] % 2 != 0) {
                    isOdd = true;
                }
            }
            if (isOdd) {
                break;
            } else {
                for (int i = 0; i < a.length; i++) {
                    a[i] = a[i] / 2;
                }
                count++;
            }
        }

        System.out.println(count);
    }
} Main
import java.util.Scanner;

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

        int count = 0;
        boolean isOdd = false;
        while (true) {
            for (int i = 0; i < a.length; i++) {
                if (a[i] % 2 != 0) {
                    isOdd = true;
                }
            }
            if (isOdd) {
                break;
            } else {
                for (int i = 0; i < a.length; i++) {
                    a[i] = a[i] / 2;
                }
                count++;
            }
        }

        System.out.println(count);
    }
}
