#include <iostream>
using namespace std;

int powerOf2(int, int*){
    _asm{
        mov esi, [ebp + 12]
            mov ecx, [ebp + 8]
            xor eax, eax
        _loop :
        dec ecx
            cmp ecx, 0
            jl finish
            mov edi, [esi + ecx*4]
            cmp edi, 0
            jz _loop
            mov ebx, edi
            dec ebx
            and ebx, edi
            jnz _loop
            inc eax
            jmp _loop
        finish :

    }
}

int main()
{
    int n, v[25], nr;
    cin >> n;
    for (int i = 0; i < n; i++)
        cin >> v[i];
    _asm
    {
        lea edi, v;
        push v;
        push n;
        call powerOf2;
        add esp, 8;
        mov nr, eax;
    }
    cout << nr;
}