ABC100 C - *3 or/2에서 배운

N = int(input())
A = list(map(int,input().split()))

cnt = 0

for i in range(N):
    while True:
        if A[i]%2 == 0:
            cnt += 1
            A[i] = A[i]//2
        else:
            break

print(cnt)#82ms

N = int(input())
A = list(map(int,input().split()))

cnt = 0
for i in range(N):
    if A[i] % 2 != 0:
        continue
    else:
        while True:
            if A[i]%2 == 0:
                A[i] = A[i]//2
                cnt += 1
            else:
                break
print(cnt)#80ms