import java.util.*;

public class Main {
	
	public static long solve(int k) {
		if(k % 2 != 0)return 0;
		long ans = 0;
		ans = 1 + solve(k / 2);
		return ans;
	}
	
	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();
		sc.close();
		Arrays.sort(a);
		long ans = 0;
		for(int i = 0; i < n; ++i)
			ans += solve(a[i]);
		
		System.out.println(ans);
	}

} import java.util.*; util.* java public class Main {
	
	public static long solve(int k) {
		if(k % 2 != 0)return 0;
		long ans = 0;
		ans = 1 + solve(k / 2);
		return ans;
	}
	
	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();
		sc.close();
		Arrays.sort(a);
		long ans = 0;
		for(int i = 0; i < n; ++i)
			ans += solve(a[i]);
		
		System.out.println(ans);
	}

} Main public static long solve(int k) {
		if(k % 2 != 0)return 0;
		long ans = 0;
		ans = 1 + solve(k / 2);
		return ans;
	} solve {
		if(k % 2 != 0)return 0;
		long ans = 0;
		ans = 1 + solve(k / 2);
		return ans;
	} if(k % 2 != 0)return 0; k % 2 != 0 k % 2 k 2 0 return 0; 0 long ans = 0; ans 0 ans = 1 + solve(k / 2) ans 1 + solve(k / 2) 1 solve(k / 2) solve k / 2 k 2 return ans; ans int k k 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();
		sc.close();
		Arrays.sort(a);
		long ans = 0;
		for(int i = 0; i < n; ++i)
			ans += solve(a[i]);
		
		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();
		sc.close();
		Arrays.sort(a);
		long ans = 0;
		for(int i = 0; i < n; ++i)
			ans += solve(a[i]);
		
		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] a i sc.nextInt() sc.nextInt sc sc.close() sc.close sc Arrays.sort(a) Arrays.sort Arrays a long ans = 0; ans 0 for(int i = 0; i < n; ++i)
			ans += solve(a[i]); int i = 0; int i = 0; i 0 i < n i n ++i ++i i ans += solve(a[i]); ans += solve(a[i]) ans solve(a[i]) solve a[i] a i System.out.println(ans) System.out.println System.out System System.out ans String[] args args public class Main {
	
	public static long solve(int k) {
		if(k % 2 != 0)return 0;
		long ans = 0;
		ans = 1 + solve(k / 2);
		return ans;
	}
	
	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();
		sc.close();
		Arrays.sort(a);
		long ans = 0;
		for(int i = 0; i < n; ++i)
			ans += solve(a[i]);
		
		System.out.println(ans);
	}

} public class Main {
	
	public static long solve(int k) {
		if(k % 2 != 0)return 0;
		long ans = 0;
		ans = 1 + solve(k / 2);
		return ans;
	}
	
	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();
		sc.close();
		Arrays.sort(a);
		long ans = 0;
		for(int i = 0; i < n; ++i)
			ans += solve(a[i]);
		
		System.out.println(ans);
	}

} Main
import java.util.*;

public class Main {
	
	public static long solve(int k) {
		if(k % 2 != 0)return 0;
		long ans = 0;
		ans = 1 + solve(k / 2);
		return ans;
	}
	
	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();
		sc.close();
		Arrays.sort(a);
		long ans = 0;
		for(int i = 0; i < n; ++i)
			ans += solve(a[i]);
		
		System.out.println(ans);
	}

}
