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 ans = 0;

        for (int i=0; i<N; /*nop*/) {
            if (a[i] % 2 != 0) {
                i++;
                continue;
            }
            a[i] /= 2;
            ans++;
        }

        System.out.println("" + ans);
    }
} 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 ans = 0;

        for (int i=0; i<N; /*nop*/) {
            if (a[i] % 2 != 0) {
                i++;
                continue;
            }
            a[i] /= 2;
            ans++;
        }

        System.out.println("" + ans);
    }
} 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 ans = 0;

        for (int i=0; i<N; /*nop*/) {
            if (a[i] % 2 != 0) {
                i++;
                continue;
            }
            a[i] /= 2;
            ans++;
        }

        System.out.println("" + ans);
    } 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 ans = 0;

        for (int i=0; i<N; /*nop*/) {
            if (a[i] % 2 != 0) {
                i++;
                continue;
            }
            a[i] /= 2;
            ans++;
        }

        System.out.println("" + ans);
    } 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 ans = 0; ans 0 for (int i=0; i<N; /*nop*/) {
            if (a[i] % 2 != 0) {
                i++;
                continue;
            }
            a[i] /= 2;
            ans++;
        } int i=0; int i=0; i 0 i<N i N {
            if (a[i] % 2 != 0) {
                i++;
                continue;
            }
            a[i] /= 2;
            ans++;
        } {
            if (a[i] % 2 != 0) {
                i++;
                continue;
            }
            a[i] /= 2;
            ans++;
        } if (a[i] % 2 != 0) {
                i++;
                continue;
            } a[i] % 2 != 0 a[i] % 2 a[i] a i 2 0 {
                i++;
                continue;
            } i++ i continue; a[i] /= 2 a[i] a i 2 ans++ ans System.out.println("" + ans) System.out.println System.out System System.out "" + ans "" ans 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 ans = 0;

        for (int i=0; i<N; /*nop*/) {
            if (a[i] % 2 != 0) {
                i++;
                continue;
            }
            a[i] /= 2;
            ans++;
        }

        System.out.println("" + ans);
    }
} 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 ans = 0;

        for (int i=0; i<N; /*nop*/) {
            if (a[i] % 2 != 0) {
                i++;
                continue;
            }
            a[i] /= 2;
            ans++;
        }

        System.out.println("" + ans);
    }
} 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 ans = 0;

        for (int i=0; i<N; /*nop*/) {
            if (a[i] % 2 != 0) {
                i++;
                continue;
            }
            a[i] /= 2;
            ans++;
        }

        System.out.println("" + ans);
    }
}
