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 cnt = 0;
		boolean b = true;
		for(int i = 2;b; i *= 2) {
			b = false;
			for(int j = 0; j < n; j++) {
				if(a[j] % i == 0) {
					b = true;
					cnt++;
				}
			}
		}
		System.out.println(cnt);
	}

} 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 cnt = 0;
		boolean b = true;
		for(int i = 2;b; i *= 2) {
			b = false;
			for(int j = 0; j < n; j++) {
				if(a[j] % i == 0) {
					b = true;
					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 b = true;
		for(int i = 2;b; i *= 2) {
			b = false;
			for(int j = 0; j < n; j++) {
				if(a[j] % i == 0) {
					b = true;
					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 b = true;
		for(int i = 2;b; i *= 2) {
			b = false;
			for(int j = 0; j < n; j++) {
				if(a[j] % i == 0) {
					b = true;
					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 b = true; b true for(int i = 2;b; i *= 2) {
			b = false;
			for(int j = 0; j < n; j++) {
				if(a[j] % i == 0) {
					b = true;
					cnt++;
				}
			}
		} int i = 2; int i = 2; i 2 b i *= 2 i *= 2 i 2 {
			b = false;
			for(int j = 0; j < n; j++) {
				if(a[j] % i == 0) {
					b = true;
					cnt++;
				}
			}
		} {
			b = false;
			for(int j = 0; j < n; j++) {
				if(a[j] % i == 0) {
					b = true;
					cnt++;
				}
			}
		} b = false b false for(int j = 0; j < n; j++) {
				if(a[j] % i == 0) {
					b = true;
					cnt++;
				}
			} int j = 0; int j = 0; j 0 j < n j n j++ j++ j {
				if(a[j] % i == 0) {
					b = true;
					cnt++;
				}
			} {
				if(a[j] % i == 0) {
					b = true;
					cnt++;
				}
			} if(a[j] % i == 0) {
					b = true;
					cnt++;
				} a[j] % i == 0 a[j] % i a[j] a j i 0 {
					b = true;
					cnt++;
				} b = true b true 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 b = true;
		for(int i = 2;b; i *= 2) {
			b = false;
			for(int j = 0; j < n; j++) {
				if(a[j] % i == 0) {
					b = true;
					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 b = true;
		for(int i = 2;b; i *= 2) {
			b = false;
			for(int j = 0; j < n; j++) {
				if(a[j] % i == 0) {
					b = true;
					cnt++;
				}
			}
		}
		System.out.println(cnt);
	}

} 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 cnt = 0;
		boolean b = true;
		for(int i = 2;b; i *= 2) {
			b = false;
			for(int j = 0; j < n; j++) {
				if(a[j] % i == 0) {
					b = true;
					cnt++;
				}
			}
		}
		System.out.println(cnt);
	}

}
