import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		int n = sc.nextInt();
		long a[] = new long[n];
		int ans = 0;
		
		for(int i=0;i<n;i++){
		    a[i] = sc.nextLong();
		    for(long j=0; j<n; j++){
		        if(a[i]%2==0){
		            a[i] = a[i]/2;
		            ans++;
		        }
		    }
		}
		
        System.out.println(ans);
	}
} import java.util.*; util.* java public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		int n = sc.nextInt();
		long a[] = new long[n];
		int ans = 0;
		
		for(int i=0;i<n;i++){
		    a[i] = sc.nextLong();
		    for(long j=0; j<n; j++){
		        if(a[i]%2==0){
		            a[i] = 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();
		long a[] = new long[n];
		int ans = 0;
		
		for(int i=0;i<n;i++){
		    a[i] = sc.nextLong();
		    for(long j=0; j<n; j++){
		        if(a[i]%2==0){
		            a[i] = a[i]/2;
		            ans++;
		        }
		    }
		}
		
        System.out.println(ans);
	} main {
		Scanner sc = new Scanner(System.in);
		
		int n = sc.nextInt();
		long a[] = new long[n];
		int ans = 0;
		
		for(int i=0;i<n;i++){
		    a[i] = sc.nextLong();
		    for(long j=0; j<n; j++){
		        if(a[i]%2==0){
		            a[i] = 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 long a[] = new long[n]; a new long[n] n int ans = 0; ans 0 for(int i=0;i<n;i++){
		    a[i] = sc.nextLong();
		    for(long j=0; j<n; j++){
		        if(a[i]%2==0){
		            a[i] = a[i]/2;
		            ans++;
		        }
		    }
		} int i=0; int i=0; i 0 i<n i n i++ i++ i {
		    a[i] = sc.nextLong();
		    for(long j=0; j<n; j++){
		        if(a[i]%2==0){
		            a[i] = a[i]/2;
		            ans++;
		        }
		    }
		} {
		    a[i] = sc.nextLong();
		    for(long j=0; j<n; j++){
		        if(a[i]%2==0){
		            a[i] = a[i]/2;
		            ans++;
		        }
		    }
		} a[i] = sc.nextLong() a[i] a i sc.nextLong() sc.nextLong sc for(long j=0; j<n; j++){
		        if(a[i]%2==0){
		            a[i] = a[i]/2;
		            ans++;
		        }
		    } long j=0; long j=0; j 0 j<n j n j++ j++ j {
		        if(a[i]%2==0){
		            a[i] = a[i]/2;
		            ans++;
		        }
		    } {
		        if(a[i]%2==0){
		            a[i] = a[i]/2;
		            ans++;
		        }
		    } if(a[i]%2==0){
		            a[i] = a[i]/2;
		            ans++;
		        } a[i]%2==0 a[i]%2 a[i] a i 2 0 {
		            a[i] = a[i]/2;
		            ans++;
		        } a[i] = a[i]/2 a[i] a i a[i]/2 a[i] a i 2 ans++ ans System.out.println(ans) System.out.println System.out System System.out ans String[] args args public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		int n = sc.nextInt();
		long a[] = new long[n];
		int ans = 0;
		
		for(int i=0;i<n;i++){
		    a[i] = sc.nextLong();
		    for(long j=0; j<n; j++){
		        if(a[i]%2==0){
		            a[i] = 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();
		long a[] = new long[n];
		int ans = 0;
		
		for(int i=0;i<n;i++){
		    a[i] = sc.nextLong();
		    for(long j=0; j<n; j++){
		        if(a[i]%2==0){
		            a[i] = a[i]/2;
		            ans++;
		        }
		    }
		}
		
        System.out.println(ans);
	}
} Main
import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		int n = sc.nextInt();
		long a[] = new long[n];
		int ans = 0;
		
		for(int i=0;i<n;i++){
		    a[i] = sc.nextLong();
		    for(long j=0; j<n; j++){
		        if(a[i]%2==0){
		            a[i] = a[i]/2;
		            ans++;
		        }
		    }
		}
		
        System.out.println(ans);
	}
}
