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];
        for (int i = 0; i < N; i++) {
            a[i] = sc.nextInt();
        }
 
        int cnt = 0;
        boolean next = true;
        while (next) {
            for (int i = 0; i < N; i++) {
                if (a[i] % 2 != 0) {
                    next = false;
                    break;
                } else {
                    a[i] = a[i] / 2;
                }
            }
            if (next) {
                cnt++;
            }
        }
        System.out.println(cnt);
    }
} 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];
        for (int i = 0; i < N; i++) {
            a[i] = sc.nextInt();
        }
 
        int cnt = 0;
        boolean next = true;
        while (next) {
            for (int i = 0; i < N; i++) {
                if (a[i] % 2 != 0) {
                    next = false;
                    break;
                } else {
                    a[i] = a[i] / 2;
                }
            }
            if (next) {
                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 next = true;
        while (next) {
            for (int i = 0; i < N; i++) {
                if (a[i] % 2 != 0) {
                    next = false;
                    break;
                } else {
                    a[i] = a[i] / 2;
                }
            }
            if (next) {
                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 next = true;
        while (next) {
            for (int i = 0; i < N; i++) {
                if (a[i] % 2 != 0) {
                    next = false;
                    break;
                } else {
                    a[i] = a[i] / 2;
                }
            }
            if (next) {
                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 next = true; next true while (next) {
            for (int i = 0; i < N; i++) {
                if (a[i] % 2 != 0) {
                    next = false;
                    break;
                } else {
                    a[i] = a[i] / 2;
                }
            }
            if (next) {
                cnt++;
            }
        } next {
            for (int i = 0; i < N; i++) {
                if (a[i] % 2 != 0) {
                    next = false;
                    break;
                } else {
                    a[i] = a[i] / 2;
                }
            }
            if (next) {
                cnt++;
            }
        } for (int i = 0; i < N; i++) {
                if (a[i] % 2 != 0) {
                    next = false;
                    break;
                } else {
                    a[i] = a[i] / 2;
                }
            } int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
                if (a[i] % 2 != 0) {
                    next = false;
                    break;
                } else {
                    a[i] = a[i] / 2;
                }
            } {
                if (a[i] % 2 != 0) {
                    next = false;
                    break;
                } else {
                    a[i] = a[i] / 2;
                }
            } if (a[i] % 2 != 0) {
                    next = false;
                    break;
                } else {
                    a[i] = a[i] / 2;
                } a[i] % 2 != 0 a[i] % 2 a[i] a i 2 0 {
                    next = false;
                    break;
                } next = false next false break; {
                    a[i] = a[i] / 2;
                } a[i] = a[i] / 2 a[i] a i a[i] / 2 a[i] a i 2 if (next) {
                cnt++;
            } next {
                cnt++;
            } cnt++ cnt System.out.println(cnt) System.out.println System.out System System.out cnt 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 cnt = 0;
        boolean next = true;
        while (next) {
            for (int i = 0; i < N; i++) {
                if (a[i] % 2 != 0) {
                    next = false;
                    break;
                } else {
                    a[i] = a[i] / 2;
                }
            }
            if (next) {
                cnt++;
            }
        }
        System.out.println(cnt);
    }
} 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 cnt = 0;
        boolean next = true;
        while (next) {
            for (int i = 0; i < N; i++) {
                if (a[i] % 2 != 0) {
                    next = false;
                    break;
                } else {
                    a[i] = a[i] / 2;
                }
            }
            if (next) {
                cnt++;
            }
        }
        System.out.println(cnt);
    }
} 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];
        for (int i = 0; i < N; i++) {
            a[i] = sc.nextInt();
        }
 
        int cnt = 0;
        boolean next = true;
        while (next) {
            for (int i = 0; i < N; i++) {
                if (a[i] % 2 != 0) {
                    next = false;
                    break;
                } else {
                    a[i] = a[i] / 2;
                }
            }
            if (next) {
                cnt++;
            }
        }
        System.out.println(cnt);
    }
}